Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
510
FNUS55 KRIW 301202
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
501 AM MST Sun Nov 30 2025
.DISCUSSION...
***This product is currently automated with no discussion
and will not be refreshed with all forecast updates. It should
be used for planning purposes only. If you need additional fire
weather information, please contact the NWS office in Riverton,
Wyoming. The human written discussion section along with the fire
weather forecast will resume regular operations sometime in
Spring 2026.***
---Thunderstorms imply strong gusty and erratic winds---
WYZ280-302300-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy. Slight chance of snow showers in the
late morning and early afternoon. Chance of
snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....20-25.
24 hr trend......4 degrees warmer.
Min humidity........47-53 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....4-9.
24 hr trend......7 degrees warmer.
Max humidity........75-81 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
west around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 2000, then west until
0100, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 2000, then west.
Mixing Height.......400-1200 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....30-35.
24 hr trend......10 degrees warmer.
Min humidity........45-51 percent.
24 hr trend......11 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.....West 15 to 20 mph until 1400, then 20 to 25 mph
until 1600, then around 15 mph.
Mixing Height.......600-2600 ft agl until 1700, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cold. Mostly cloudy. Lows around 18.
Southwest winds around 15 mph.
.TUESDAY...Snow showers likely. Lows around 17. Highs in the
upper 30s. West winds around 10 mph.
.WEDNESDAY...Colder. Partly cloudy. Chance of snow showers. Lows
around 8. Highs in the mid 20s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows around 15. Highs around 30.
Southwest winds around 15 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the mid 30s.
.SATURDAY...Mostly cloudy. Slight chance of snow showers in the
morning, then slight chance of snow showers and showers in the
afternoon. Highs in the upper 30s.
$$
WYZ283-302300-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy. Slight
chance of snow showers in the late morning and
early afternoon. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......3 degrees warmer.
Min humidity........54-60 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 0900.
Ridge top winds.....North around 10 mph until 1000, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1400, then north
until 1600, then northwest.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....7-12.
24 hr trend......2 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 10
mph.
Ridge top winds.....Northwest around 10 mph until 2200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....29-34.
24 hr trend......8 degrees warmer.
Min humidity........47-53 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 17. Southwest winds
around 10 mph.
.TUESDAY...Mostly cloudy with chance of snow showers. Lows around
19. Highs in the mid 30s. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers. Lows
around 9. Highs in the upper 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy. Lows around 15. Highs around 30. Winds
generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows in the lower 20s. Highs in the mid
30s.
.SATURDAY...Partly cloudy. Slight chance of snow showers in the
morning, then slight chance of showers and snow showers in the
afternoon. Highs around 40.
$$
WYZ285-302300-
South Bighorn Mountains-
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....18-23.
24 hr trend......6 degrees warmer.
Min humidity........34-40 percent.
24 hr trend......17 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
around 10 mph until 1500, then upslope/upvalley
5-9 mph.
Ridge top winds.....East 10 to 15 mph until 1300. North after 1600.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph until 1600, then north.
Mixing Height.......200-1600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....7-12.
24 hr trend......4 degrees warmer.
Max humidity........61-67 percent.
24 hr trend......19 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....25-30.
24 hr trend......7 degrees warmer.
Min humidity........46-52 percent.
24 hr trend......6 percent wetter.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......200-1800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 18. Southwest winds
around 10 mph.
.TUESDAY...Snow showers likely. Lows around 17. Highs around 30.
West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of snow showers. Lows around
10. Highs in the lower 20s. West winds around 10 mph.
.THURSDAY...Partly cloudy with slight chance of snow showers.
Lows around 16. Highs in the upper 20s. West winds around 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the upper 20s.
.SATURDAY...Mostly cloudy with slight chance of snow showers.
Highs in the lower 30s.
$$
WYZ281-302300-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......6 degrees warmer.
Min humidity........45-51 percent.
24 hr trend......12 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....7-12.
24 hr trend......6 degrees warmer.
Max humidity........65-71 percent.
24 hr trend......9 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph until 2400. Winds
southwest around 10 mph after 0300.
Ridge top winds.....South around 10 mph until 2200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 0100, then west.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....31-36.
24 hr trend......10 degrees warmer.
Min humidity........43-49 percent.
24 hr trend......9 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......800-2800 ft agl until 1700, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 18. Southwest winds
around 10 mph.
.TUESDAY...Cloudy with chance of snow showers. Lows around 17.
Highs in the upper 30s. Northwest winds around 10 mph.
.WEDNESDAY...Colder. Partly cloudy. Slight chance of snow
showers. Lows around 10. Highs in the mid 20s. Southwest winds
around 10 mph.
.THURSDAY...Partly cloudy with slight chance of snow showers.
Lows around 18. Highs in the mid 30s. Southwest winds around
10 mph.
.FRIDAY...Mostly cloudy. Slight chance of snow showers and
showers. Lows in the lower 20s. Highs in the upper 30s.
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
snow showers in the morning, then slight chance of showers and
snow showers in the afternoon. Highs in the upper 30s.
$$
WYZ282-302300-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....20-25.
24 hr trend......5 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......15 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northwest around 5 mph until 0800, then north.
Chc of wetting rain.Zero percent.
Transport winds.....North around 5 mph until 0700, then northwest
until 0900, then southwest until 1000, then
northeast.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....6-11.
24 hr trend......1 degree warmer.
Max humidity........68-74 percent.
24 hr trend......15 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....North around 10 mph until 2100. South after
2200.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2000. South after
2300.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....26-31.
24 hr trend......6 degrees warmer.
Min humidity........42-48 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1200
until 1500.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1700, then southeast.
Mixing Height.......200-1800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows around 16. Winds generally
less than 10 mph.
.TUESDAY...Snow showers likely. Lows around 19. Highs in the mid
30s. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Lows around 9. Highs in the upper 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy. Lows around 15. Highs in the lower
30s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
around 20. Highs in the mid 30s.
.SATURDAY...Mostly cloudy. Slight chance of snow showers in the
morning, then slight chance of showers and snow showers in the
afternoon. Highs in the upper 30s.
$$
WYZ275-302300-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....19-24.
24 hr trend......4 degrees warmer.
Min humidity........38-44 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1500.
Ridge top winds.....Northwest 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 5 mph until 0800, then west until
1200, then southwest until 1300, then northeast
until 1500, then north.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....6-11.
24 hr trend......Unchanged.
Max humidity........66-72 percent.
24 hr trend......12 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph until 2200, then south
until 0500, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph until 2200, then
southwest until 2400, then south.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....24-29.
24 hr trend......5 degrees warmer.
Min humidity........43-49 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 0900.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing Height.......200-1600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 17. Winds generally
less than 10 mph.
.TUESDAY...Cloudy with snow showers likely. Lows around 17. Highs
in the mid 30s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear with slight chance of snow showers.
Lows around 11. Highs in the upper 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy with slight chance of snow showers.
Lows around 17. Highs in the lower 30s. Winds generally less than
10 mph.
.FRIDAY...Mostly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the lower 30s.
.SATURDAY...Mostly cloudy. Chance of snow showers in the morning,
then chance of snow showers and slight chance of showers in the
afternoon. Highs in the upper 30s.
$$
WYZ276-302300-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....23-28.
24 hr trend......6 degrees warmer.
Min humidity........47-53 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 5 mph until 0700, then north until
1000, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 5 to 10 mph until 1500. North after
1700.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....10-15.
24 hr trend......5 degrees warmer.
Max humidity........56-62 percent.
24 hr trend......26 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
west around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
west around 10 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....30-35.
24 hr trend......9 degrees warmer.
Min humidity........43-49 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows in the lower 20s. Southwest
winds around 10 mph.
.TUESDAY...Cloudy with chance of snow showers. Lows around 18.
Highs in the mid 30s. Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 14. Highs in the upper
20s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy with slight chance of snow showers.
Lows in the lower 20s. Highs in the mid 30s. Southwest winds
around 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
in the upper 20s. Highs in the upper 30s.
.SATURDAY...Mostly cloudy. Chance of snow showers in the morning,
then chance of snow showers and showers in the afternoon. Highs
in the upper 30s.
$$
WYZ287-302300-
Owl Creek Mountains-
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....17-22.
24 hr trend......5 degrees warmer.
Min humidity........42-48 percent.
24 hr trend......17 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 10 mph until 1000. Northeast after
1400.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1300. North after
1700.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....8-13.
24 hr trend......4 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......24 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest around 10 mph until 2200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....25-30.
24 hr trend......8 degrees warmer.
Min humidity........41-47 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....West around 10 mph until 1000, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1600, then southwest.
Mixing Height.......200-2000 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 20. Winds generally
less than 10 mph.
.TUESDAY...Cloudy with snow showers likely. Lows around 19. Highs
in the lower 30s. Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Lows around 12. Highs in the mid 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy. Lows around 18. Highs in the upper
20s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
in the mid 20s. Highs in the lower 30s.
.SATURDAY...Partly cloudy. Slight chance of snow showers in the
morning, then chance of snow showers in the afternoon. Highs in
the upper 30s.
$$
WYZ286-302300-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....18-23.
24 hr trend......1 degree warmer.
Min humidity........46-52 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southeast around 10 mph until 0800, then east
until 1600, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 1500. Northwest after
1700.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....4-9.
24 hr trend......1 degree warmer.
Max humidity........63-69 percent.
24 hr trend......6 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
west around 10 mph and gusty.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......4 degrees warmer.
Min humidity........55-61 percent.
24 hr trend......2 percent wetter.
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.....Northwest 15 to 20 mph until 1300, then west 20
to 25 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cold. Mostly cloudy. Slight chance of snow
showers after midnight. Lows around 17. West winds around 20 mph.
.TUESDAY...Snow showers likely. Lows around 11. Highs in the mid
20s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of snow showers. Lows
around 8. Highs in the lower 20s. West winds around 10 mph.
.THURSDAY...Partly cloudy with chance of snow showers. Lows
around 16. Highs in the mid 20s. West winds around 15 mph.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows in the
lower 20s. Highs in the upper 20s.
.SATURDAY...Chance of snow showers in the morning, then snow
showers likely in the afternoon. Highs in the upper 20s.
$$
WYZ140-302300-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......3 degrees warmer.
Min humidity........45-51 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....Northeast around 10 mph until 1600, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1500, then north.
Mixing Height.......800-2800 ft agl until 1700, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....1-6.
24 hr trend......2 degrees cooler.
Max humidity........76-82 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....North 10 to 15 mph until 2300, then 5 to 10 mph
until 0100, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph until 0200, then west.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers late in the
afternoon. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......3 degrees cooler.
Min humidity........60-66 percent.
24 hr trend......14 percent wetter.
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.....West 10 to 15 mph until 1400, then 15 to 20
mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Cloudy. Slight chance of snow showers in the
evening, then chance of snow showers after midnight. Lows around
13. Southwest winds around 10 mph.
.TUESDAY...Snow showers. Lows around 7. Highs in the lower 20s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Lows around 5. Highs in the lower 20s. Winds generally less than
10 mph.
.THURSDAY...Mostly cloudy with chance of snow showers. Lows
around 13. Highs in the lower 20s. Winds generally less than
10 mph.
.FRIDAY...Cloudy with chance of snow showers. Lows around 17.
Highs in the mid 20s.
.SATURDAY...Snow showers likely. Highs in the upper 20s.
$$
WYZ415-302300-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers early in the
morning. Chance of snow showers late in the
morning, then slight chance of snow showers
late in the morning. Chance of snow 50 percent.
Chance of thunder...0 percent.
Max temperature.....22-27.
24 hr trend......3 degrees warmer.
Min humidity........44-50 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....East around 10 mph until 1500, then north.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph until 1400, then northeast.
Mixing Height.......1000-3000 ft agl until 1700, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....2-7.
24 hr trend......4 degrees cooler.
Max humidity........77-83 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 10
mph until 2400.
Ridge top winds.....North 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of snow showers late in the
afternoon. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......2 degrees cooler.
Min humidity........65-71 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph until 1500, then upslope/upvalley
5-9 mph.
Ridge top winds.....West around 10 mph until 0800, then 10 to 15
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow showers in
the evening, then chance of snow showers after midnight. Lows
around 12. Winds generally less than 10 mph.
.TUESDAY...Snow showers. Lows around 9. Highs in the lower 20s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Lows around 4. Highs in the mid 20s. Winds generally less than
10 mph.
.THURSDAY...Mostly cloudy. Chance of snow showers. Lows around
12. Highs in the lower 20s. Winds generally less than 10 mph.
.FRIDAY...Snow showers likely. Lows around 19. Highs in the mid
20s.
.SATURDAY...Snow showers likely. Highs in the upper 20s.
$$
WYZ416-302300-
West Wind River Mountains/East Zone Bridger Teton NF-
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy. Chance of
snow showers. Chance of snow 50 percent.
Chance of thunder...0 percent.
Max temperature.....18-23.
24 hr trend......1 degree cooler.
Min humidity........41-47 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
around 10 mph until 1200, then north. Gusts up
to 15 mph.
Ridge top winds.....East 10 to 15 mph until 1300, then north.
Chc of wetting rain.5 percent.
Transport winds.....East 10 to 15 mph until 1300, then northeast.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....2-7.
24 hr trend......1 degree cooler.
Max humidity........70-76 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
north around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....20-25.
24 hr trend......2 degrees warmer.
Min humidity........51-57 percent.
24 hr trend......1 percent drier.
20-foot winds.......Northwest winds around 10 mph and gusty.
Ridge top winds.....Northwest around 15 mph until 1100, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow showers
after midnight. Lows around 10. West winds around 10 mph.
.TUESDAY...Cloudy with snow showers likely. Lows around 10. Highs
in the lower 20s. Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of snow showers. Lows
around 4. Highs in the lower 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy with slight chance of snow showers.
Lows around 9. Highs in the lower 20s. Northwest winds around
10 mph.
.FRIDAY THROUGH SATURDAY...Mostly cloudy with chance of snow
showers. Lows around 17. Highs in the upper 20s.
$$
WYZ288-302300-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers early in the
morning. Chance of snow showers until late
afternoon. Chance of snow 50 percent.
Chance of thunder...0 percent.
Max temperature.....16-21.
24 hr trend......3 degrees cooler.
Min humidity........53-59 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast around 10 mph until 1500, then north.
Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph until 1300. Northwest
after 1700.
Chc of wetting rain.Less than 5 percent.
Transport winds.....East 10 to 15 mph until 1500, then north.
Mixing Height.......400-1800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....4-9.
24 hr trend......1 degree warmer.
Max humidity........69-75 percent.
24 hr trend......5 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
west around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....23-28.
24 hr trend......9 degrees warmer.
Min humidity........49-55 percent.
24 hr trend......15 percent drier.
20-foot winds.......West winds 10 to 15 mph with higher gusts.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cold. Mostly cloudy. Slight chance of snow
showers after midnight. Lows around 17. West winds around 15 mph.
.TUESDAY...Snow showers likely. Lows around 14. Highs in the
upper 20s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Chance of snow showers. Lows around
8. Highs in the lower 20s. Northwest winds around 10 mph.
.THURSDAY...Partly cloudy with slight chance of snow showers.
Lows around 14. Highs in the mid 20s. West winds around 15 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with chance of snow
showers. Lows in the lower 20s. Highs in the lower 30s.
$$
WYZ414-302300-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy. Snow
showers in the morning, then chance of snow
showers in the afternoon. Patchy fog early in
the morning. Patchy fog late in the morning.
Snow accumulation up to 3 inches. Chance of
snow 90 percent.
Chance of thunder...0 percent.
Max temperature.....22-27.
24 hr trend......Unchanged.
Min humidity........58-64 percent.
24 hr trend......17 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....East around 10 mph until 1300, then north until
1700, then northwest.
Chc of wetting rain.40 percent until 1200, then 10 percent.
Transport winds.....East 10 to 15 mph until 1300. North after 1600.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....5-10.
24 hr trend......5 degrees cooler.
Max humidity........80-86 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....21-26.
24 hr trend......1 degree cooler.
Min humidity........63-69 percent.
24 hr trend......3 percent wetter.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Chance of snow showers after
midnight. Lows around 14. West winds around 10 mph.
.TUESDAY...Snow showers. Lows around 14. Highs in the mid 20s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of snow showers. Lows
around 7. Highs in the mid 20s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Chance of snow showers. Lows around
13. Highs in the mid 20s. West winds around 10 mph.
.FRIDAY...Mostly cloudy with chance of snow showers. Lows around
20. Highs in the upper 20s.
.SATURDAY...Snow showers likely. Highs around 30.
$$
WYZ278-302300-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy. Slight
chance of snow showers early in the morning,
then chance of snow showers until late
afternoon. Slight chance of snow showers late
in the afternoon. Chance of snow 50 percent.
Chance of thunder...0 percent.
Max temperature.....22-27.
24 hr trend......2 degrees cooler.
Min humidity........49-55 percent.
24 hr trend......24 percent wetter.
20-foot winds.......East winds around 10 mph until 1500, then
upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph until 1700, then north.
Chc of wetting rain.5 percent.
Transport winds.....East around 15 mph until 1500, then north.
Mixing Height.......600-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....5-10.
24 hr trend......8 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......10 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......600-1000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....26-31.
24 hr trend......4 degrees warmer.
Min humidity........45-51 percent.
24 hr trend......16 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph. 20 mph after
1500.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph until 1100, then 20 to
25 mph until 1700, then around 15 mph.
Mixing Height.......400-2200 ft agl until 1300, then 1200-3000 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 13. West winds around
10 mph.
.TUESDAY...Mostly cloudy with chance of snow showers. Lows around
15. Highs in the lower 30s. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers. Lows
around 6. Highs in the upper 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy. Lows around 11. Highs around 30.
Northwest winds around 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
around 18. Highs in the mid 30s.
.SATURDAY...Mostly cloudy with slight chance of snow showers.
Highs in the mid 30s.
$$
WYZ277-302300-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Mostly cloudy. Snow showers in the morning,
then snow showers likely in the afternoon.
Patchy fog early in the morning. Areas of fog
late in the morning, then patchy fog early in
the afternoon. Snow accumulation of 1 to 3
inches. Chance of snow 90 percent.
Chance of thunder...0 percent.
Max temperature.....23-28.
24 hr trend......3 degrees cooler.
Min humidity........52-58 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northeast around 10 mph until 1500, then
upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.40 percent until 1200, then 25 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......600-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of snow showers
early in the evening. Chance of snow 20
percent.
Chance of thunder...0 percent.
Min temperature.....7-12.
24 hr trend......9 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
northwest around 10 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2000, then northwest.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....25-30.
24 hr trend......2 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds 10 to 15 mph with higher gusts.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph until 1400. West after
1700.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 16. West winds around
10 mph.
.TUESDAY...Cloudy with chance of snow showers. Lows around 17.
Highs in the lower 30s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers. Lows
around 7. Highs in the upper 20s. Winds generally less than
10 mph.
.THURSDAY...Partly cloudy. Lows around 13. Highs in the upper
20s. West winds around 10 mph.
.FRIDAY...Mostly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the lower 30s.
.SATURDAY...Mostly cloudy with chance of snow showers. Highs in
the mid 30s.
$$
WYZ279-302300-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy. Chance of snow showers in the morning.
Snow showers likely in the afternoon. Snow
accumulation up to 1 inch. Chance of snow 70
percent.
Chance of thunder...0 percent.
Max temperature.....27-32.
24 hr trend......3 degrees cooler.
Min humidity........56-62 percent.
24 hr trend......19 percent wetter.
20-foot winds.......East winds around 10 mph and gusty until 1500,
then north with higher gusts.
Ridge top winds.....East around 15 mph until 1400, then north.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....East around 15 mph until 1200, then northeast.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of snow showers early in the evening.
Chance of snow 50 percent.
Chance of thunder...0 percent.
Min temperature.....11-16.
24 hr trend......7 degrees cooler.
Max humidity........82-88 percent.
24 hr trend......17 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph and gusty until 2400,
then downslope/downvalley 4-7 mph.
Ridge top winds.....North 10 to 15 mph until 0100, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph until 2300. West 10 to 15
mph after 0400.
Mixing Height.......400-1400 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....27-32.
24 hr trend......2 degrees warmer.
Min humidity........48-54 percent.
24 hr trend......10 percent drier.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 20 mph
until 1200, then 25 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph until 1300, then 20 to 25
mph.
Mixing Height.......400-2400 ft agl until 1300, then 1400-3200 ft
agl until 1700, then 600-1000 ft agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows around 18. Southwest winds
around 15 mph.
.TUESDAY...Cloudy with chance of snow showers. Lows around 19.
Highs in the lower 30s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers. Lows
around 8. Highs in the upper 20s. Northeast winds around 10 mph.
.THURSDAY...Partly cloudy. Lows around 15. Highs in the upper
20s. West winds around 10 mph.
.FRIDAY...Mostly cloudy. Lows in the lower 20s. Highs in the
lower 30s.
.SATURDAY...Mostly cloudy with slight chance of snow showers.
Highs in the upper 30s.
$$
WYZ289-302300-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy. Slight chance of snow showers early in
the morning. Chance of snow showers in the late
morning and early afternoon. Slight chance of
snow showers late in the afternoon. Chance of
snow 50 percent.
Chance of thunder...0 percent.
Max temperature.....18-23.
24 hr trend......1 degree cooler.
Min humidity........56-62 percent.
24 hr trend......1 percent drier.
20-foot winds.......Northeast winds 10 to 15 mph with higher gusts.
Ridge top winds.....Northeast around 15 mph until 1700, then north.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......400-1600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....6-11.
24 hr trend......2 degrees warmer.
Max humidity........76-82 percent.
24 hr trend......7 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph and gusty until 2400,
then downslope/downvalley 4-7 mph.
Ridge top winds.....North 10 to 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph until 2400, then west 10 to
15 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....24-29.
24 hr trend......8 degrees warmer.
Min humidity........50-56 percent.
24 hr trend......14 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with higher gusts.
Ridge top winds.....Southwest 10 to 15 mph until 1400, then 15 to
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......200-2200 ft agl until 1400, then 1000-2600 ft
agl until 1700, then 400-600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly cloudy. Lows around 18. Southwest winds
around 15 mph.
.TUESDAY...Snow showers likely. Lows around 18. Highs in the
lower 30s. West winds around 15 mph.
.WEDNESDAY...Partly cloudy. Chance of snow showers. Lows around
8. Highs in the mid 20s. Northwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows around 14. Highs in the upper
20s. Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows in the lower 20s. Highs in the
lower 30s.
.SATURDAY...Mostly cloudy with slight chance of snow showers.
Highs in the mid 30s.
$$
WYZ300-302300-
Casper Mountain-
501 AM MST Sun Nov 30 2025
.TODAY...
Sky/weather.........Cloudy. Slight chance of snow showers early in
the morning. Chance of snow showers late in the
morning, then slight chance of snow showers
late in the afternoon. Patchy fog late in the
afternoon. Chance of snow 50 percent.
Chance of thunder...0 percent.
Max temperature.....17-22.
24 hr trend......8 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......21 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph until 1500, then
upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast 10 to 15 mph until 1600, then north.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southeast 10 to 15 mph until 1700, then south.
Mixing Height.......200-1600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....4-9.
24 hr trend......1 degree cooler.
Max humidity........79-85 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph until 2400. Winds
west around 10 mph after 0300.
Ridge top winds.....Northwest 10 to 15 mph until 2200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2100, then 10 to 15
mph.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....23-28.
24 hr trend......4 degrees warmer.
Min humidity........56-62 percent.
24 hr trend......7 percent wetter.
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.....West 15 to 20 mph until 1200, then 20 to 25
mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Not as cold. Partly cloudy. Lows around 17.
Southwest winds around 15 mph.
.TUESDAY...Snow showers likely. Lows around 16. Highs in the
upper 20s. West winds around 15 mph.
.WEDNESDAY...Partly cloudy. Chance of snow showers. Lows around
7. Highs around 20. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows around 14. Highs in the mid 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of snow showers. Lows
around 20. Highs in the upper 20s.
.SATURDAY...Mostly cloudy with slight chance of snow showers.
Highs in the lower 30s.
$$