Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
725
FNUS55 KRIW 301841
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
1241 PM MDT Tue Sep 30 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Showers and thunderstorms will continue to develop across the
dispatch area this afternoon and evening. Chances for precipitation
range from 30-70% over most of the area with a 20-50% for wetting
rains. Gusty outflow winds of 40 mph may be possible nearby any
developing showers or storms today. Isolated heavy downpours cannot
be ruled out directly overhead any of the stronger storms. A brief
break in precipitation occurs during the evening with another round
of light showers possible during the early morning hours on
Wednesday. Winds increase to around 10 to 20 knots this afternoon
and evening with periodic gusts of 25 to 30 knots.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Showers and thunderstorms will once again be possible this afternoon
and evening with the best chances 20-50% across western zones.
Precipitation is expected to be mostly limited to western zones such
as 289, 288, 286, and 275. Other zones may see an isolated shower or
storm this afternoon/evening but chances are lower around 10-30%.
Chances for wetting rains are expected to be mostly restricted to
the higher elevations of 288 and 286. Winds increase this afternoon
and evening ranging from 10 to 20 knots with gusts of 25 to 30
knots. Strong gusty outflow winds of 40 mph may be possible nearby
any developing showers or storms.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Showers and thunderstorms will once again be possible this afternoon
and evening with the best chances 30-60% across western zones.
Precipitation is expected to be mostly limited to western zones such
as 277, 278, 279, and 289. Other zones may see an isolated shower or
storm this afternoon/evening but chances are lower around 10-30%.
Chances for wetting rains are expected to be mostly restricted to
the western portions of zones 277, 278 and 279. Winds increase this
afternoon and evening ranging from 10 to 20 knots with gusts of 25
to 30 knots. Strong gusty outflow winds of 40 mph may be possible
nearby any developing showers or storms. Another round of isolated
showers may be possible during the early morning hours on Wednesday.
The best chances for precipitation with these showers would be zones
277, 278, 279, and 289.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-012045-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......Unchanged.
Min humidity........26-32 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......8600-9400 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......Unchanged.
Max humidity........71-77 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......3 degrees cooler.
Min humidity........26-32 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......4 degrees cooler.
Max humidity........57-63 percent.
24 hr trend......11 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph. Gusts up to 25
mph until 2400, then 15 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......7 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers. Lows in the mid 40s.
Highs in the upper 70s. Southwest winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
North winds around 10 mph.
.SUNDAY...Cooler. Mostly cloudy with chance of showers. Lows in
the lower 30s. Highs in the lower 50s. Northeast winds around
10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the lower 30s. Highs in the mid 50s.
.TUESDAY...Mostly sunny. Highs in the upper 50s.
$$
WYZ283-012045-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....68-73.
24 hr trend......1 degree cooler.
Min humidity........35-41 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......6000-8000 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....46-51.
24 hr trend......1 degree cooler.
Max humidity........66-72 percent.
24 hr trend......3 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......4 degrees cooler.
Min humidity........31-37 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......4 degrees cooler.
Max humidity........64-70 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......6 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then south
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 70s. West
winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s. North
winds around 10 mph.
.SUNDAY...Cooler. Mostly cloudy with chance of showers. Lows in
the lower 30s. Highs in the upper 40s. Northeast winds around
10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the lower 30s. Highs in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the upper 50s.
$$
WYZ285-012045-
South Bighorn Mountains-
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......2 degrees cooler.
Min humidity........31-37 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......6600-8400 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......2 degrees cooler.
Max humidity........66-72 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Good.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......4 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......Unchanged.
Max humidity........50-56 percent.
24 hr trend......14 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......6 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows around 50. Southwest winds
around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs around 70. West winds
around 10 mph.
.SATURDAY...Cooler. Showers, snow showers likely and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
50s. North winds around 10 mph.
.SUNDAY...Colder. Mostly cloudy with chance of showers and snow
showers. Lows in the lower 30s. Highs in the lower 40s. Northeast
winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 50s.
$$
WYZ281-012045-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........24-30 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......8600-10200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......1 degree cooler.
Max humidity........70-76 percent.
24 hr trend......7 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......5 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......3 degrees cooler.
Max humidity........53-59 percent.
24 hr trend......14 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......6 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 70s. West
winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
North winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers. Lows in the mid
30s. Highs in the lower 50s. North winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the mid 30s. Highs in the mid 50s.
.TUESDAY...Mostly sunny. Highs in the lower 60s.
$$
WYZ282-012045-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......1 degree cooler.
Min humidity........29-35 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......8200-9800 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....45-50.
24 hr trend......Unchanged.
Max humidity........69-75 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......4 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......5 degrees cooler.
Max humidity........56-62 percent.
24 hr trend......5 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
south around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......6 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Northwest winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers. Lows in the mid
30s. Highs in the lower 50s. North winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the mid 30s. Highs in the mid 50s.
.TUESDAY...Mostly sunny. Highs around 60.
$$
WYZ275-012045-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....67-72.
24 hr trend......2 degrees cooler.
Min humidity........31-37 percent.
24 hr trend......1 percent wetter.
20-foot winds.......South winds around 10 mph with higher gusts.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......6800-8600 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms in the
evening. Slight chance of showers in the
evening. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....45-50.
24 hr trend......Unchanged.
Max humidity........70-76 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......800-2800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....61-66.
24 hr trend......5 degrees cooler.
Min humidity........30-36 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......4 degrees cooler.
Max humidity........58-64 percent.
24 hr trend......5 percent drier.
Humidity recovery...Good.
20-foot winds.......Southeast winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
south around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......6 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. North
winds around 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 70s.
Northwest winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers. Lows in the mid
30s. Highs in the lower 50s. North winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the mid 30s. Highs in the mid 50s.
.TUESDAY...Mostly sunny. Highs around 60.
$$
WYZ276-012045-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Slight chance of showers early
in the evening. Slight chance of thunderstorms
through the day. Chance of showers early in the
evening. Chance of precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....69-74.
24 hr trend......1 degree cooler.
Min humidity........31-37 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......5600-7600 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers early in the evening. Slight
chance of thunderstorms early in the evening.
Slight chance of showers early in the evening.
Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....47-52.
24 hr trend......2 degrees cooler.
Max humidity........61-67 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......5 degrees cooler.
Min humidity........30-36 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......3 degrees cooler.
Max humidity........56-62 percent.
24 hr trend......5 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....69-74.
24 hr trend......5 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1200, then
southeast. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy with slight chance of showers.
Lows in the upper 40s. Winds generally less than 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
Northwest winds around 10 mph.
.SATURDAY...Cooler. Mostly cloudy with showers likely and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
50s. Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers and snow showers.
Lows in the lower 30s. Highs in the mid 40s. North winds around
10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 30s. Highs in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the upper 50s.
$$
WYZ287-012045-
Owl Creek Mountains-
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....66-71.
24 hr trend......Unchanged.
Min humidity........33-39 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......5600-7600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....45-50.
24 hr trend......2 degrees cooler.
Max humidity........59-65 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......4 degrees cooler.
Min humidity........31-37 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......2 degrees cooler.
Max humidity........54-60 percent.
24 hr trend......7 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......4 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......4 percent drier.
20-foot winds.......South winds around 10 mph with higher gusts.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Northwest winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the lower 50s. North
winds around 15 mph.
.SUNDAY...Mostly cloudy with chance of showers and snow showers
likely. Lows in the lower 30s. Highs in the mid 40s. North winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the mid 50s.
$$
WYZ286-012045-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......3 degrees cooler.
Min humidity........48-54 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.10 percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......3600-5600 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms in the
evening. Slight chance of showers early in the
evening. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......2 degrees cooler.
Max humidity........77-83 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 20 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the morning. Slight chance of showers and
thunderstorms in the late morning and early
afternoon. Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....54-59.
24 hr trend......5 degrees cooler.
Min humidity........47-53 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds 15 to 20 mph with gusts to around 30
mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4000-6000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....40-45.
24 hr trend......Unchanged.
Max humidity........70-76 percent.
24 hr trend......13 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair.
.THURSDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....59-64.
24 hr trend......6 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......11 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers after
midnight. Lows in the lower 40s. Southwest winds around 10 mph.
.FRIDAY...Showers likely and slight chance of thunderstorms. Lows
in the upper 30s. Highs in the upper 50s. Southwest winds around
10 mph.
.SATURDAY...Colder. Showers, snow showers likely and slight
chance of thunderstorms. Lows in the upper 20s. Highs in the mid
40s. Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with snow showers and showers likely.
Lows in the mid 20s. Highs in the upper 30s. East winds around
10 mph.
.MONDAY...Partly cloudy with chance of snow showers and showers.
Lows in the upper 20s. Highs in the lower 40s.
.TUESDAY...Mostly sunny. Slight chance of showers and snow
showers in the afternoon. Highs in the upper 40s.
$$
WYZ140-012045-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....56-61.
24 hr trend......7 degrees cooler.
Min humidity........60-66 percent.
24 hr trend......21 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.25 percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......2200-4000 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms through the night.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....39-44.
24 hr trend......1 degree cooler.
Max humidity........85-91 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.12 percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......4 degrees cooler.
Min humidity........47-53 percent.
24 hr trend......10 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3200-5200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......1 degree cooler.
Max humidity........82-88 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.THURSDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and slight
chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......6 degrees warmer.
Min humidity........48-54 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers after
midnight. Lows in the upper 30s. Winds generally less than
10 mph.
.FRIDAY...Showers likely and slight chance of thunderstorms. Lows
in the mid 30s. Highs in the upper 50s. Winds generally less than
10 mph.
.SATURDAY...Colder. Mostly cloudy with showers likely with
possible snow showers and thunderstorms. Lows in the upper 20s.
Highs in the mid 40s. Winds generally less than 10 mph.
.SUNDAY...Mostly cloudy. Chance of snow showers, showers and
slight chance of thunderstorms. Lows in the lower 20s. Highs in
the lower 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 20s. Highs in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 50s.
$$
WYZ415-012045-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Cloudy. Showers likely and chance of
thunderstorms. Chance of precipitation 70
percent.
Chance of thunder...40 percent.
Max temperature.....52-57.
24 hr trend......7 degrees cooler.
Min humidity........66-72 percent.
24 hr trend......21 percent wetter.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.55 percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......2200-3800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Showers likely early in the
evening. Slight chance of thunderstorms until
early morning. Chance of showers. Chance of
precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....37-42.
24 hr trend......1 degree cooler.
Max humidity........90-96 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.12 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers early in the morning. Slight
chance of thunderstorms. Slight chance of
showers early in the morning. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......2 degrees cooler.
Min humidity........57-63 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then around
20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 3400-5200 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....34-39.
24 hr trend......1 degree cooler.
Max humidity........79-85 percent.
24 hr trend......14 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
south around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....58-63.
24 hr trend......8 degrees warmer.
Min humidity........45-51 percent.
24 hr trend......17 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers after
midnight. Lows in the upper 30s. Winds generally less than
10 mph.
.FRIDAY...Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s. Winds
generally less than 10 mph.
.SATURDAY...Cooler. Mostly cloudy with showers, snow showers
likely and chance of thunderstorms. Lows in the upper 20s. Highs
in the mid 40s. Winds generally less than 10 mph.
.SUNDAY...Mostly cloudy with chance of snow showers, showers and
slight chance of thunderstorms. Lows in the mid 20s. Highs in the
lower 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 20s. Highs in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 50s.
$$
WYZ416-012045-
West Wind River Mountains/East Zone Bridger Teton NF-
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Showers likely early in the
evening. Chance of thunderstorms through the
day. Chance of showers early in the evening.
Chance of precipitation 70 percent.
Chance of thunder...40 percent.
Max temperature.....50-55.
24 hr trend......6 degrees cooler.
Min humidity........61-67 percent.
24 hr trend......16 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.30 percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......2400-3400 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms in the
evening. Slight chance of showers in the late
evening and overnight. Chance of precipitation
50 percent.
Chance of thunder...20 percent.
Min temperature.....35-40.
24 hr trend......3 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the morning. Slight chance of showers and
thunderstorms in the late morning and
afternoon. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....49-54.
24 hr trend......1 degree cooler.
Min humidity........56-62 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3000-4200 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....34-39.
24 hr trend......1 degree warmer.
Max humidity........76-82 percent.
24 hr trend......17 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......7 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......20 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. Winds
generally less than 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s.
Southwest winds around 10 mph.
.SATURDAY...Cooler. Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows in the upper 20s. Highs in
the mid 40s. Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of snow showers, showers and
slight chance of thunderstorms. Lows in the mid 20s. Highs in the
upper 30s. Southeast winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 20s. Highs in the mid 40s.
.TUESDAY...Mostly sunny. Highs in the upper 40s.
$$
WYZ288-012045-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......3 degrees cooler.
Min humidity........51-57 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.15 percent.
Transport winds.....Southwest around 30 mph.
Mixing Height.......3000-5000 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of thunderstorms early in the
evening. Slight chance of showers through the
night. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....40-45.
24 hr trend......2 degrees cooler.
Max humidity........75-81 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......800-2800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....55-60.
24 hr trend......3 degrees cooler.
Min humidity........48-54 percent.
24 hr trend......4 percent drier.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4200-6000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......Unchanged.
Max humidity........66-72 percent.
24 hr trend......18 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....60-65.
24 hr trend......6 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......13 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
Southwest winds around 10 mph.
.SATURDAY...Cooler. Showers, snow showers likely and slight
chance of thunderstorms. Lows around 30. Highs in the upper 40s.
Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with snow showers likely with possible
showers and thunderstorms. Lows in the upper 20s. Highs in the
upper 30s. East winds around 10 mph.
.MONDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows in the upper 20s. Highs in the mid 40s.
.TUESDAY...Mostly sunny. Slight chance of showers and snow
showers in the afternoon. Highs in the upper 40s.
$$
WYZ414-012045-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and
thunderstorms. Chance of precipitation 50
percent.
Chance of thunder...30 percent.
Max temperature.....51-56.
24 hr trend......7 degrees cooler.
Min humidity........67-73 percent.
24 hr trend......18 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.30 percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......2800-3800 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......2 degrees cooler.
Max humidity........90-96 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....52-57.
24 hr trend......2 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......12 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3200-5200 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......1 degree warmer.
Max humidity........76-82 percent.
24 hr trend......20 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....60-65.
24 hr trend......7 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......19 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....South around 15 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. Winds
generally less than 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 30s. Highs around 60. Southwest winds around
10 mph.
.SATURDAY...Cooler. Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows around 30. Highs in the mid
40s. West winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows in the upper 20s. Highs in
the lower 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the upper 20s. Highs in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the mid 50s.
$$
WYZ278-012045-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and
thunderstorms. Chance of precipitation 50
percent.
Chance of thunder...30 percent.
Max temperature.....54-59.
24 hr trend......5 degrees cooler.
Min humidity........53-59 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.5 percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......4000-4600 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
early in the evening. Chance of precipitation
20 percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
24 hr trend......2 degrees cooler.
Max humidity........85-91 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....57-62.
24 hr trend......1 degree warmer.
Min humidity........43-49 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......600-2600 ft agl until 1200, then 4400-6400 ft
agl.
Smoke dispersal.....Poor until 1200, then fair to good.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....35-40.
24 hr trend......3 degrees cooler.
Max humidity........77-83 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....West around 10 mph until 2400, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2400, then southeast.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......6 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with gusts to around 25
mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. Winds
generally less than 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 60s.
West winds around 10 mph.
.SATURDAY...Cooler. Mostly cloudy with showers likely, chance of
thunderstorms and snow showers. Lows around 30. Highs in the mid
50s. Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows in the upper 20s. Highs in
the upper 40s. East winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the upper 20s. Highs in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the upper 50s.
$$
WYZ277-012045-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....53-58.
24 hr trend......7 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.5 percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......3600-4600 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the evening. Slight
chance of thunderstorms through the night.
Chance of showers after midnight. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....39-44.
24 hr trend......3 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the morning. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....58-63.
24 hr trend......5 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......14 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....37-42.
24 hr trend......3 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......17 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....64-69.
24 hr trend......6 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. Winds
generally less than 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the upper 30s. Highs in the upper 60s. Southwest winds
around 10 mph.
.SATURDAY...Cooler. Mostly cloudy. Showers likely, chance of
thunderstorms and snow showers. Lows around 30. Highs in the
lower 50s. West winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows around 30. Highs in the
upper 40s. East winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows around 30. Highs in the mid 50s.
.TUESDAY...Mostly sunny. Highs in the upper 50s.
$$
WYZ279-012045-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and slight
chance of thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....58-63.
24 hr trend......3 degrees cooler.
Min humidity........44-50 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.5 percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......4000-6000 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms
early in the evening. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Min temperature.....42-47.
24 hr trend......Unchanged.
Max humidity........78-84 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Southwest around 20 mph until 2400, then around
10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest around 20 mph until 2400, then around
10 mph.
Mixing Height.......800-2800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....60-65.
24 hr trend......1 degree warmer.
Min humidity........35-41 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......3 degrees cooler.
Max humidity........68-74 percent.
24 hr trend......11 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......6 degrees warmer.
Min humidity........33-39 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 70s.
South winds around 10 mph.
.SATURDAY...Cooler. Mostly cloudy with showers likely and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the mid
50s. West winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of showers, slight chance of
thunderstorms and snow showers. Lows in the lower 30s. Highs in
the lower 50s. East winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the lower 30s. Highs in the mid 50s.
.TUESDAY...Mostly sunny. Highs around 60.
$$
WYZ289-012045-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms through
the day. Slight chance of showers early in the
evening. Chance of precipitation 40 percent.
Chance of thunder...10 percent.
Max temperature.....63-68.
24 hr trend......1 degree cooler.
Min humidity........36-42 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......5600-7600 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....47-52.
24 hr trend......Unchanged.
Max humidity........75-81 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......3 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......3 degrees cooler.
Max humidity........61-67 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
southwest around 10 mph with gusts to around 15
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.THURSDAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......6 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......8 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 70s.
Southwest winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s.
Northwest winds around 10 mph.
.SUNDAY...Cooler. Mostly cloudy with chance of showers, snow
showers and slight chance of thunderstorms. Lows in the lower
30s. Highs in the upper 40s. Northeast winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the upper 50s.
$$
WYZ300-012045-
Casper Mountain-
1241 PM MDT Tue Sep 30 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......2 degrees cooler.
Min humidity........35-41 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 30 mph.
Mixing Height.......7200-8400 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......Unchanged.
Max humidity........71-77 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 15 to 20 mph. Gusts up to 30
mph until 2400, then 40 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....61-66.
24 hr trend......2 degrees cooler.
Min humidity........35-41 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......1 degree cooler.
Max humidity........53-59 percent.
24 hr trend......22 percent drier.
Humidity recovery...Moderate.
20-foot winds.......South winds around 10 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......7 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......10 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Clear. Lows in the upper 40s. South winds
around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers. Lows in the mid 40s.
Highs in the lower 70s. Southwest winds around 10 mph.
.SATURDAY...Cooler. Showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s. West
winds around 10 mph.
.SUNDAY...Colder. Mostly cloudy with chance of showers and snow
showers. Lows in the lower 30s. Highs in the mid 40s. East winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs around 50.
.TUESDAY...Mostly sunny. Highs in the mid 50s.
$$