Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
043
FNUS55 KRIW 181848
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
1248 PM MDT Fri Jul 18 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Showers and thunderstorms will increase in coverage from southwest
to northeast through the afternoon. Gusty and erratic winds of 40 to
50 mph along with small hail will be possible with stronger storms.
Wetting rain chances remain less than 15 percent for most locations.
Showers and thunderstorms will decrease in coverage from west to
east after 2100 this evening. Overnight, expect light winds and very
good to excellent RH recoveries. Slightly drier conditions are
expected Saturday, with showers and thunderstorms possible during
the afternoon, particularly across 414.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Showers and thunderstorms will increase in coverage after 1600 this
afternoon. Gusty and erratic winds of 40 to 50 mph along with small
hail will be possible with stronger storms. Wetting rain chances
remain less than 15 percent for most locations. Showers and
thunderstorms will decrease in coverage from west to east after
2400. Overnight, expect light winds and good to very good RH
recoveries. Warmer and drier conditions are expected Saturday with
winds from the west at 10 to 15 mph through the afternoon.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Showers and thunderstorms will increase in coverage from southwest
to northeast through the afternoon and evening. Gusty and erratic
winds of 40 to 50 mph along with small hail will be possible with
stronger storms. Wetting rain chances remain less than 15 percent
for most locations. Showers and thunderstorms will decrease in
coverage from west to east after 2400. Overnight, expect light winds
and good to very good RH recoveries. Warmer and drier conditions are
expected Saturday, particularly across 280 and 281, with winds from
the west at 10 to 15 mph through the afternoon. Showers and
thunderstorms will again be possible across 277, 278, and 279
Saturday afternoon.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-192100-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....83-88.
24 hr trend......4 degrees cooler.
Min humidity........24-30 percent.
24 hr trend......9 percent wetter.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......8400-10400 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers and
thunderstorms early in the evening, then
isolated showers and thunderstorms in the
evening. Some thunderstorms may produce gusty
winds and small hail in the evening. Chance of
precipitation 30 percent.
Chance of thunder...30 percent.
Min temperature.....58-63.
24 hr trend......2 degrees warmer.
Max humidity........66-72 percent.
24 hr trend......21 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......3 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......6 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.......3400-5400 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......1 degree cooler.
Max humidity........41-47 percent.
24 hr trend......27 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 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.....West around 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....88-93.
24 hr trend......3 degrees warmer.
Min humidity........10-16 percent.
24 hr trend......4 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.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......4200-6200 ft agl until 1200, then 12800-14800
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY THROUGH MONDAY...Mostly clear. Lows in the upper 50s.
Highs in the lower 90s. Southwest winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 90. Northwest
winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
North winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 90.
.FRIDAY...Mostly sunny. Highs in the lower 90s.
$$
WYZ283-192100-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Isolated showers and
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....82-87.
24 hr trend......4 degrees cooler.
Min humidity........20-26 percent.
24 hr trend......7 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.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......8400-10400 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers and thunderstorms early in the
evening. Some thunderstorms may produce gusty
winds and small hail early in the evening.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....53-58.
24 hr trend......Unchanged.
Max humidity........58-64 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......3 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......3 percent drier.
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.......3000-5000 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......1 degree cooler.
Max humidity........35-41 percent.
24 hr trend......22 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 15 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......3 degrees warmer.
Min humidity........13-19 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 1500, then west around 20
mph with gusts to around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 11800-13800
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest
winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers. Lows in the
upper 50s. Highs in the lower 90s. Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs around
90. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
lower 90s.
$$
WYZ285-192100-
South Bighorn Mountains-
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Scattered showers and isolated
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....77-82.
24 hr trend......4 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......11 percent wetter.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......7600-9600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers and thunderstorms in the
evening. Some thunderstorms may produce gusty
winds and small hail in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....54-59.
24 hr trend......3 degrees warmer.
Max humidity........62-68 percent.
24 hr trend......20 percent drier.
Humidity recovery...Good.
20-foot winds.......South winds around 10 mph until 2100, then west
until 2400, then downslope/downvalley 4-7 mph
until 0300, then southwest around 10 mph. Gusts
up to 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......3 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......6 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 8800-10800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......Unchanged.
Max humidity........32-38 percent.
24 hr trend......28 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......2 degrees warmer.
Min humidity........13-19 percent.
24 hr trend......4 percent drier.
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 20 to 25 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10600-12600
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs 81 to 86.
Northwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Northwest winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
.FRIDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 80s.
$$
WYZ281-192100-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....77-82.
24 hr trend......5 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Northeast winds around 10 mph and gusty.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......7000-8800 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy. Isolated showers and
thunderstorms in the evening. Some
thunderstorms may produce gusty winds and small
hail in the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....58-63.
24 hr trend......3 degrees warmer.
Max humidity........71-77 percent.
24 hr trend......19 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......7 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......15 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1200, then
west. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......1 degree cooler.
Max humidity........48-54 percent.
24 hr trend......25 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......1 degree warmer.
Min humidity........18-24 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the upper 80s. North winds around
10 mph.
.WEDNESDAY...Mostly clear with chance of showers and slight
chance of thunderstorms. Lows in the upper 50s. Highs in the
upper 80s. Northeast winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs around
90.
$$
WYZ282-192100-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms through the day. Some
thunderstorms may produce gusty winds and small
hail. Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....78-83.
24 hr trend......5 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......11 percent wetter.
20-foot winds.......East winds around 10 mph with higher gusts.
Ridge top winds.....East around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......7000-8800 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers and thunderstorms in the
evening. Some thunderstorms may produce gusty
winds and small hail in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....53-58.
24 hr trend......1 degree warmer.
Max humidity........64-70 percent.
24 hr trend......13 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph until 2100, then northwest with
gusts to around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3000-5000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......2 degrees cooler.
Max humidity........40-46 percent.
24 hr trend......25 percent drier.
Humidity recovery...Moderate.
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 around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......2 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......3 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.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers. Lows in the
upper 50s. Highs in the lower 90s. West winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows 56 to 61. Highs around 90. North
winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 90s.
$$
WYZ275-192100-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening. Some
thunderstorms may produce gusty winds and small
hail early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....76-81.
24 hr trend......4 degrees cooler.
Min humidity........24-30 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......6800-8200 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers and thunderstorms in the
evening. Some thunderstorms may produce gusty
winds and small hail in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....54-59.
24 hr trend......1 degree warmer.
Max humidity........64-70 percent.
24 hr trend......7 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 2100, then
southeast until 2400, then downslope/downvalley
4-7 mph. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph until 2400, then southeast.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3000-5000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......5 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph until 1500, then west. 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 around 15 mph until 1200, then west.
Mixing Height.......2200-4200 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......1 degree cooler.
Max humidity........45-51 percent.
24 hr trend......18 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 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.....West around 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......Unchanged.
Min humidity........13-19 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds west
around 10 mph with gusts to around 25 mph after
1500.
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.......1800-3800 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 10 mph.
.MONDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Northwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
.FRIDAY...Mostly sunny. Highs in the lower 90s.
$$
WYZ276-192100-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....77-82.
24 hr trend......5 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......14 percent wetter.
20-foot winds.......Northeast winds around 10 mph with higher
gusts.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......8200-10200 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Isolated showers and thunderstorms
late in the evening. Some thunderstorms may
produce gusty winds and small hail in the
evening. Chance of precipitation 30 percent.
Chance of thunder...30 percent.
Min temperature.....55-60.
24 hr trend......4 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......18 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 30 mph until 2100, then southwest with
gusts to around 30 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......5 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......12 percent drier.
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 20 to 25 mph.
Mixing Height.......4000-6000 ft agl until 1200, then 10600-12600
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....55-60.
24 hr trend......1 degree cooler.
Max humidity........36-42 percent.
24 hr trend......25 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
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...10 percent.
Max temperature.....82-87.
24 hr trend......Unchanged.
Min humidity........17-23 percent.
24 hr trend......Unchanged.
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 around 15 mph until 1200, then around 30
mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds
around 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs 81 to 86.
North winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 80s. Northwest winds
around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 80s.
$$
WYZ287-192100-
Owl Creek Mountains-
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....76-81.
24 hr trend......5 degrees cooler.
Min humidity........25-31 percent.
24 hr trend......14 percent wetter.
20-foot winds.......South winds 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.......8000-9600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers and thunderstorms early in the
evening. Isolated showers and thunderstorms
late in the evening. Some thunderstorms may
produce gusty winds and small hail early in the
evening. Some thunderstorms may produce gusty
winds and small hail late in the evening.
Chance of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....55-60.
24 hr trend......2 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......15 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 15 mph until 2100, then
northwest until 2400, then southwest. Gusts up
to 25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......9 percent drier.
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.......3400-5400 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......Unchanged.
Max humidity........26-32 percent.
24 hr trend......28 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......1 degree warmer.
Min humidity........14-20 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 20
mph until 1200, then 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......2800-4800 ft agl until 1200, then 10600-12600
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs 82 to 87.
Northwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 80s. Northwest winds
around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
mid 80s.
$$
WYZ286-192100-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....70-75.
24 hr trend......3 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......8 percent wetter.
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.......8000-10000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers and thunderstorms in the
evening. Some thunderstorms may produce gusty
winds and small hail early in the evening. Some
thunderstorms may produce gusty winds and small
hail early in the evening. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Min temperature.....49-54.
24 hr trend......2 degrees warmer.
Max humidity........68-74 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Isolated showers and thunderstorms late in the
afternoon. Some thunderstorms may produce gusty
winds and small hail late in the afternoon.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......1 degree warmer.
Min humidity........20-26 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds 15 to 20 mph with gusts to around 40
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 1200, then around 35
mph.
Mixing Height.......3200-5200 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......Unchanged.
Max humidity........36-42 percent.
24 hr trend......32 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph until 0300, then around 10 mph with gusts
to around 25 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
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...10 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........17-23 percent.
24 hr trend......3 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 35 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 1200, then around 35
mph.
Mixing Height.......3400-5400 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Very good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s. West winds
around 10 mph.
.TUESDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
West winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and thunderstorms.
Lows around 50. Highs in the lower 70s. West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ140-192100-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......2 degrees cooler.
Min humidity........21-27 percent.
24 hr trend......8 percent wetter.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......6800-8800 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers and thunderstorms early in
the evening, then isolated showers and
thunderstorms in the evening. Some
thunderstorms may produce gusty winds and small
hail in the evening. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Min temperature.....43-48.
24 hr trend......2 degrees warmer.
Max humidity........80-86 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 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 around 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......1 degree cooler.
Min humidity........22-28 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
around 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
35 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......Unchanged.
Max humidity........45-51 percent.
24 hr trend......38 percent drier.
Humidity recovery...Moderate.
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 15 to 20 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
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...10 percent.
Max temperature.....74-79.
24 hr trend......Unchanged.
Min humidity........23-29 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
35 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 9000-11000 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the mid
70s. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ415-192100-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......2 degrees cooler.
Min humidity........24-30 percent.
24 hr trend......8 percent wetter.
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 20 mph.
Mixing Height.......7400-9400 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers and isolated thunderstorms in
the evening. Some thunderstorms may produce
gusty winds and small hail in the evening.
Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....44-49.
24 hr trend......1 degree cooler.
Max humidity........77-83 percent.
24 hr trend......18 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West 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.Less than 5 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......1 degree cooler.
Min humidity........25-31 percent.
24 hr trend......Unchanged.
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 around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 8000-9800 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......Unchanged.
Max humidity........47-53 percent.
24 hr trend......35 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 0300, then south with gusts
to around 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......1 degree warmer.
Min humidity........20-26 percent.
24 hr trend......5 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.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 10 mph.
.MONDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s. Southwest winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs in the
mid 70s. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.FRIDAY...Partly cloudy. Highs in the upper 70s.
$$
WYZ416-192100-
West Wind River Mountains/East Zone Bridger Teton NF-
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Scattered showers and
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....70-75.
24 hr trend......3 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......6 percent wetter.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.10 percent.
Transport winds.....West around 15 mph.
Mixing Height.......6600-8600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers early in the evening.
Isolated thunderstorms in the evening. Isolated
showers late in the evening. Some thunderstorms
may produce gusty winds and small hail in the
evening. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....43-48.
24 hr trend......1 degree cooler.
Max humidity........76-82 percent.
24 hr trend......19 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West around 10 mph until 2400, then southeast.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms in the afternoon. Some
thunderstorms may produce gusty winds and small
hail in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....68-73.
24 hr trend......Unchanged.
Min humidity........28-34 percent.
24 hr trend......3 percent wetter.
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.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......1 degree warmer.
Max humidity........41-47 percent.
24 hr trend......36 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then around 10
mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......2 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......8 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
west around 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then west
around 30 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Southwest
winds around 10 mph.
.MONDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds around 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. Southwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
West winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ288-192100-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Scattered showers and
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....73-78.
24 hr trend......3 degrees cooler.
Min humidity........22-28 percent.
24 hr trend......6 percent wetter.
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.5 percent.
Transport winds.....West around 20 mph.
Mixing Height.......6800-8800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated thunderstorms early in the evening.
Isolated showers in the evening. Some
thunderstorms may produce gusty winds and small
hail early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....49-54.
24 hr trend......2 degrees cooler.
Max humidity........64-70 percent.
24 hr trend......18 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.SATURDAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms in the afternoon. Some
thunderstorms may produce gusty winds and small
hail in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......1 degree warmer.
Min humidity........25-31 percent.
24 hr trend......1 percent wetter.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......1 degree warmer.
Max humidity........34-40 percent.
24 hr trend......28 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......2 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 35 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......3600-5600 ft agl until 1200, then 9800-11600 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
around 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Southwest winds around 15 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the lower 50s. Highs in the
mid 70s. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the lower 50s. Highs in the
upper 70s.
$$
WYZ414-192100-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Scattered showers and
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....72-77.
24 hr trend......3 degrees cooler.
Min humidity........26-32 percent.
24 hr trend......10 percent wetter.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.20 percent.
Transport winds.....West around 15 mph.
Mixing Height.......6200-8200 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers and thunderstorms early in
the evening, then isolated showers and
thunderstorms early in the evening. Some
thunderstorms may produce gusty winds and small
hail in the evening. Chance of precipitation 50
percent.
Chance of thunder...30 percent.
Min temperature.....44-49.
24 hr trend......3 degrees cooler.
Max humidity........80-86 percent.
24 hr trend......27 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South 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.Less than 5 percent.
Transport winds.....South around 10 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the afternoon. Some
thunderstorms may produce gusty winds and small
hail early in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....72-77.
24 hr trend......Unchanged.
Min humidity........25-31 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
west. Gusts up to 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.......3000-5000 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......1 degree warmer.
Max humidity........52-58 percent.
24 hr trend......37 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......2 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY THROUGH WEDNESDAY...Mostly clear. Lows in the lower 50s.
Highs in the upper 70s. Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows around 50. Highs in
the upper 70s.
$$
WYZ277>279-192100-
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Evanston, Fort Bridger, Kemmerer,
Big Piney, Farson, Pinedale, Green River, Rock Springs,
and Wamsutter
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Scattered showers and
thunderstorms. Some thunderstorms may produce
gusty winds and small hail. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....74-79.
24 hr trend......4 degrees cooler.
Min humidity........21-27 percent.
24 hr trend......7 percent wetter.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.10 percent.
Transport winds.....West around 20 mph.
Mixing Height.......6600-8600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers early in the evening.
Isolated thunderstorms until early morning.
Isolated showers until early morning. Some
thunderstorms may produce gusty winds and small
hail until early morning. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....48-53.
24 hr trend......2 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......27 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.SATURDAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms in the afternoon. Some
thunderstorms may produce gusty winds and small
hail in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....75-80.
24 hr trend......Unchanged.
Min humidity........29-35 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
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.......2400-4400 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree cooler.
Max humidity........50-56 percent.
24 hr trend......27 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
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...10 percent.
Max temperature.....77-82.
24 hr trend......3 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 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 around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds around 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows in the lower 50s.
Highs in the mid 80s. West winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 80s. West
winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 50s.
Highs in the mid 80s.
$$
WYZ289-192100-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Isolated showers early in the
evening. Isolated thunderstorms through the
day. Scattered showers early in the evening.
Some thunderstorms may produce gusty winds and
small hail. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....79-84.
24 hr trend......3 degrees cooler.
Min humidity........16-22 percent.
24 hr trend......5 percent wetter.
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.......8400-10400 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated showers and thunderstorms in the
evening. Some thunderstorms may produce gusty
winds and small hail in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....55-60.
24 hr trend......1 degree cooler.
Max humidity........63-69 percent.
24 hr trend......23 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
southwest around 10 mph. Gusts up to 25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms in the afternoon. Some
thunderstorms may produce gusty winds and small
hail in the afternoon. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......Unchanged.
Min humidity........18-24 percent.
24 hr trend......1 percent wetter.
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.......3000-5000 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......1 degree cooler.
Max humidity........40-46 percent.
24 hr trend......23 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......3 degrees warmer.
Min humidity........11-17 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph until 1200, then west around 20
mph with gusts to around 35 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 12200-14200
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest
winds around 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows 54 to 59. Highs in
the upper 80s. Southwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s. West
winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s.
.FRIDAY...Mostly sunny. Highs in the upper 80s.
$$
WYZ300-192100-
Casper Mountain-
1248 PM MDT Fri Jul 18 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Isolated showers and
thunderstorms early in the evening, then
scattered showers and thunderstorms early in
the evening. Isolated showers and thunderstorms
early in the evening. Some thunderstorms may
produce gusty winds and small hail. Chance of
precipitation 30 percent.
Chance of thunder...30 percent.
Max temperature.....78-83.
24 hr trend......2 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......8200-10200 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered showers and thunderstorms early in
the evening, then isolated showers and
thunderstorms late in the evening. Some
thunderstorms may produce gusty winds and small
hail in the evening. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Min temperature.....56-61.
24 hr trend......1 degree warmer.
Max humidity........68-74 percent.
24 hr trend......18 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 2100, then
south. Gusts up to 25 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 15 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the afternoon. Some
thunderstorms may produce gusty winds and small
hail early in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......1 degree warmer.
Min humidity........21-27 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Good until 1200, then very good to excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......Unchanged.
Max humidity........40-46 percent.
24 hr trend......30 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 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.......3000-5000 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......3 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......8 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.......3600-5600 ft agl until 1200, then 11800-13800
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY THROUGH TUESDAY...Partly cloudy. Lows 55 to 60. Highs in
the mid 80s. Southwest winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
South winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
.FRIDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 80s.
$$