Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
791
FNUS55 KRIW 201201
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
501 AM MST Thu Nov 20 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---
WYZ280-202300-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy. Patchy fog early in the
morning.
Chance of thunder...0 percent.
Max temperature.....49-54.
24 hr trend......1 degree cooler.
Min humidity........47-53 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northeast around 10 mph.
Ridge top winds.....Southwest around 10 mph until 1300, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1300, then west
until 1400, then northeast.
Mixing Height.......600-2600 ft agl until 1300, then 1200-3200 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight. Slight chance of
rain showers early in the morning. Chance of
showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......3 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 15 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph until 0500, then south.
Mixing Height.......600-1000 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning. Slight chance
of rain showers in the morning. Chance of
showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....49-54.
24 hr trend......Unchanged.
Min humidity........49-55 percent.
24 hr trend......5 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.....Northeast around 10 mph until 0700, then
southwest until 1700, then around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest.
Mixing Height.......600-2600 ft agl until 1400, then 1200-3200 ft
agl until 1700, then 400-600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows around 30. Southwest winds
around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 20s.
Highs in the lower 50s. Southwest winds around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers and slight chance
of showers. Lows in the lower 20s. Highs in the lower 50s. West
winds around 15 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 12. Highs in the lower 30s.
.WEDNESDAY...Partly cloudy. Highs in the lower 30s.
$$
WYZ283-202300-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......3 degrees cooler.
Min humidity........58-64 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest around 10 mph until 1000, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1100. North after
1300.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of rain showers late in the
evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......2 degrees cooler.
Max humidity........80-86 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. 10 mph after 2100
until 2400.
Ridge top winds.....Northwest 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 5 to 10 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......3 degrees warmer.
Min humidity........54-60 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph until 1300, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1000, then southwest.
Mixing Height.......600-2600 ft agl until 1700, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 20s.
Highs in the upper 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Slight chance of snow showers and
showers. Lows in the lower 20s. Highs around 50. West winds
around 10 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow
showers. Lows around 13. Highs in the mid 30s.
.WEDNESDAY...Partly cloudy. Highs around 30.
$$
WYZ285-202300-
South Bighorn Mountains-
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny. Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......1 degree cooler.
Min humidity........54-60 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 10 to 15 mph until 1300. Northeast
after 1400.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph until 1400, then
northeast.
Mixing Height.......800-2800 ft agl until 1700, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....29-34.
24 hr trend......2 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 10
mph until 2100, then 10 mph after 2400.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 0100, then north.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....45-50.
24 hr trend......1 degree warmer.
Min humidity........51-57 percent.
24 hr trend......1 percent drier.
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.....North around 10 mph until 0800, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 0800, then southwest.
Mixing Height.......200-2200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the lower 30s. Southwest
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the lower 30s.
Highs 44 to 49. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers and slight chance
of showers. Lows in the lower 20s. Highs in the upper 40s. West
winds around 10 mph.
.TUESDAY...Much colder. Partly cloudy with chance of snow
showers. Lows around 13. Highs in the mid 20s.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers in the
morning. Highs in the mid 20s.
$$
WYZ281-202300-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....45-50.
24 hr trend......6 degrees cooler.
Min humidity........56-62 percent.
24 hr trend......14 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South around 10 mph until 1000, then east until
1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1300, then northeast
until 1600, then north.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy fog after midnight.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......3 degrees cooler.
Max humidity........81-87 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....North around 10 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2300, then southwest.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....50-55.
24 hr trend......6 degrees warmer.
Min humidity........46-52 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 0900.
Ridge top winds.....Southwest around 10 mph until 1100, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......400-2400 ft agl until 1400, then 1000-2800 ft
agl until 1700, then 400-600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows around 30. Winds generally
less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows around 30. Highs in
the mid 50s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows in the lower 20s. Highs in the mid 50s.
West winds around 10 mph.
.TUESDAY...Much colder. Partly cloudy with slight chance of snow
showers. Lows around 13. Highs in the lower 30s.
.WEDNESDAY...Partly cloudy. Highs in the lower 30s.
$$
WYZ282-202300-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......6 degrees cooler.
Min humidity........52-58 percent.
24 hr trend......17 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 5 to 10 mph until 1000, then north
until 1700, then around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph until 1100, then north.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......3 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....North around 5 mph until 2000, then west until
0400, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....North around 5 mph until 2300, then west until
0500, then southwest.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......3 degrees warmer.
Min humidity........46-52 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South 5 to 10 mph until 1300, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph until 1600, then southeast.
Mixing Height.......200-2200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 20s.
Highs in the lower 50s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows in the lower 20s. Highs in the lower 50s.
West winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 14. Highs in the mid 30s.
.WEDNESDAY...Partly cloudy. Highs in the lower 30s.
$$
WYZ275-202300-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......6 degrees cooler.
Min humidity........54-60 percent.
24 hr trend......13 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 5 to 10 mph until 1100, then
southeast until 1300, then north.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph until 1400, then northeast
until 1500, then north.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......3 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 5 to 10 mph until 0300, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North 5 to 10 mph until 2000, then northwest
until 0500, then southwest.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......1 degree warmer.
Min humidity........46-52 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 0900.
Ridge top winds.....South around 10 mph until 1100, then southeast.
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......
.FRIDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 20s.
Highs in the lower 50s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of showers and snow showers.
Lows in the lower 20s. Highs in the lower 50s. West winds around
10 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow
showers. Lows around 15. Highs in the mid 30s.
.WEDNESDAY...Partly cloudy. Highs in the lower 30s.
$$
WYZ276-202300-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......3 degrees cooler.
Min humidity........47-53 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 5 to 10 mph until 1100, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 5 to 10 mph until 1100, then
southeast until 1300, then northeast.
Mixing Height.......1400-3400 ft agl until 1700, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....31-36.
24 hr trend......Unchanged.
Max humidity........66-72 percent.
24 hr trend......16 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph. 10 mph after
2400.
Ridge top winds.....West 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 5 mph until 1900, then west.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....49-54.
24 hr trend......4 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....Southwest 10 to 15 mph until 1000, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph until 1100, then south.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the lower 30s. Southwest
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the lower 30s.
Highs in the lower 50s. Southwest winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 20s. Highs in the lower 50s. West
winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow
showers. Lows around 15. Highs in the lower 30s.
.WEDNESDAY...Partly cloudy. Highs around 30.
$$
WYZ287-202300-
Owl Creek Mountains-
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......4 degrees cooler.
Min humidity........57-63 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest 5 to 10 mph until 1000, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 5 to 10 mph until 1000, then
southeast until 1100, then northeast.
Mixing Height.......600-2600 ft agl until 1700, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......1 degree cooler.
Max humidity........72-78 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 5 to 10 mph.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......3 degrees warmer.
Min humidity........50-56 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph until 0900. South after
1100.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1000, then south.
Mixing Height.......200-2200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows around 30. Winds generally
less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 28 to 33. Highs in
the mid 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows in the lower 20s. Highs in the upper 40s.
West winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow
showers. Lows around 14. Highs in the upper 20s.
.WEDNESDAY...Partly cloudy. Highs in the mid 20s.
$$
WYZ286-202300-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......1 degree cooler.
Min humidity........55-61 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph until 1200, then south until
1400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1300. East after 1500.
Mixing Height.......600-2600 ft agl until 1200, then 1600-3600 ft
agl until 1700, then 600-1200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....25-30.
24 hr trend......2 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......11 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. 10 mph after
2400.
Ridge top winds.....South around 10 mph until 1900, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 2200, then northwest.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......3 degrees warmer.
Min humidity........51-57 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the mid 20s. West winds
around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 20s.
Highs 40 to 45. West winds around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers. Lows around 15.
Highs in the upper 30s. West winds around 15 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 9. Highs in the lower 20s.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Highs in the lower 20s.
$$
WYZ140-202300-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of snow showers early in the
morning. Patchy fog early in the morning.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......1 degree cooler.
Min humidity........60-66 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....South 5 to 10 mph until 1500, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph until 1700, then northeast.
Mixing Height.......600-2600 ft agl until 1200, then 1400-3400 ft
agl until 1700, then 600-1000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....21-26.
24 hr trend......5 degrees cooler.
Max humidity........83-89 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 5 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East around 5 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......2 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....East around 5 mph until 0800. Southwest after
1000.
Chc of wetting rain.Zero percent.
Transport winds.....East around 5 mph until 0800, then southeast
until 1000, then southwest.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy. Lows around 20. Highs in the upper
30s. Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Lows in the lower 20s. Highs in the lower
40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of snow showers. Lows around
12. Highs in the mid 30s. Southwest winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 7. Highs in the lower 20s.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Highs in the lower 20s.
$$
WYZ415-202300-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of snow showers early in the
morning. Patchy fog early in the morning.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......Unchanged.
Min humidity........67-73 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southeast 5 to 10 mph until 1400, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South 5 to 10 mph until 1400, then northeast.
Mixing Height.......1000-3000 ft agl until 1700, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....20-25.
24 hr trend......3 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......8 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East 5 to 10 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......1 degree warmer.
Min humidity........64-70 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northeast 5 to 10 mph until 1000, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 5 to 10 mph until 1100, then
northwest.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Winds
generally less than 10 mph.
.SATURDAY...Mostly clear. Lows around 20. Highs in the upper 30s.
Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Lows around 20. Highs in the lower 40s.
Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of snow showers. Lows around
14. Highs in the mid 30s. Southwest winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 7. Highs in the mid 20s.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers in the
morning, then chance of snow showers in the afternoon. Highs in
the mid 20s.
$$
WYZ416-202300-
West Wind River Mountains/East Zone Bridger Teton NF-
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy. Patchy fog early in the morning.
Slight chance of snow showers early in the
morning. Slight chance of snow showers late in
the afternoon. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......2 degrees warmer.
Min humidity........64-70 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....East around 10 mph until 1000, then south until
1500, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1500, then
northeast.
Mixing Height.......600-2600 ft agl until 1300, then 1000-3000 ft
agl until 1700, then 400-800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers early in the
evening. Slight chance of snow showers after
midnight. Chance of snow 20 percent.
Chance of thunder...0 percent.
Min temperature.....21-26.
24 hr trend......2 degrees cooler.
Max humidity........83-89 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
northeast around 10 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers in the morning.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......2 degrees warmer.
Min humidity........63-69 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph until 1500, then upslope/upvalley
5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast around 10 mph until 1000, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1300, then
northwest.
Mixing Height.......800-2800 ft agl until 1700, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows around 19. Winds generally
less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows around 20. Highs
37 to 42. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers. Lows around 12.
Highs in the mid 30s. West winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 5. Highs in the lower 20s.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Highs in the lower 20s.
$$
WYZ288-202300-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy. Patchy fog early in the morning.
Slight chance of snow showers early in the
morning. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......1 degree cooler.
Min humidity........62-68 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southwest around 10 mph until 1000, then east
until 1600, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1100, then
southeast until 1400, then northeast.
Mixing Height.......800-2800 ft agl until 1700, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers early in the
evening. Chance of snow 20 percent.
Chance of thunder...0 percent.
Min temperature.....23-28.
24 hr trend......1 degree cooler.
Max humidity........78-84 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northeast around 10 mph until 2300, then north.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy. Slight chance of snow showers.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....39-44.
24 hr trend......2 degrees warmer.
Min humidity........61-67 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph until 0800, then 10 to
15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph until 1000, then northeast
until 1400, then north until 1600, then west.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the mid 20s. West winds
around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 23 to 28. Highs
40 to 45. West winds around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers. Lows around 17.
Highs around 40. West winds around 15 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 9. Highs in the mid 20s.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Highs in the mid 20s.
$$
WYZ414-202300-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy. Patchy fog early in the morning.
Slight chance of snow showers in the morning.
Slight chance of snow showers early in the
afternoon. Slight chance of rain showers early
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....35-40.
24 hr trend......Unchanged.
Min humidity........76-82 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Southeast 5 to 10 mph until 1100, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 5 to 10 mph until 1400, then
northeast.
Mixing Height.......1000-3000 ft agl until 1700, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of snow showers early in the
evening. Chance of snow 20 percent.
Chance of thunder...0 percent.
Min temperature.....22-27.
24 hr trend......3 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast 5 to 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 5 to 10 mph.
Mixing Height.......200-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of snow showers. Chance of snow
20 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......2 degrees warmer.
Min humidity........68-74 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 1100, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the lower 20s.
Highs in the lower 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with chance of snow showers. Lows around
17. Highs in the upper 30s. West winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 10. Highs in the mid 20s.
.WEDNESDAY...Partly cloudy with slight chance of snow showers.
Highs in the upper 20s.
$$
WYZ278-202300-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy. Patchy fog early in the morning.
Slight chance of rain showers early in the
morning. Slight chance of snow showers in the
morning. Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......Unchanged.
Min humidity........68-74 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1200.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph.
Mixing Height.......600-2600 ft agl until 1300, then 1800-3400 ft
agl until 1700, then 800-1000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
late in the evening. Slight chance of snow
showers after midnight. Chance of precipitation
20 percent.
Chance of thunder...0 percent.
Min temperature.....22-27.
24 hr trend......4 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......400-600 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....39-44.
24 hr trend......3 degrees warmer.
Min humidity........59-65 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 1100, then northeast
until 1400, then north until 1600, then west.
Mixing Height.......600-2600 ft agl until 1400, then 1200-3000 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the lower 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 17 to 22. Highs
42 to 47. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Lows around 16. Highs in the mid 40s.
West winds around 10 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow
showers. Lows around 8. Highs in the lower 30s.
.WEDNESDAY...Partly cloudy. Highs in the lower 30s.
$$
WYZ277-202300-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly cloudy. Patchy fog early in the morning.
Chance of rain showers and snow showers in the
morning, then slight chance of rain showers and
snow showers in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....36-41.
24 hr trend......2 degrees cooler.
Min humidity........73-79 percent.
24 hr trend......3 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.....Northeast around 10 mph.
Mixing Height.......400-2400 ft agl until 1300, then 1400-3000 ft
agl until 1700, then 600-1000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
and snow showers early in the evening. Slight
chance of rain showers after midnight. Slight
chance of snow showers after midnight. Chance
of precipitation 20 percent.
Chance of thunder...0 percent.
Min temperature.....24-29.
24 hr trend......3 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 10
mph until 0300.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....38-43.
24 hr trend......3 degrees warmer.
Min humidity........70-76 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 0900.
Ridge top winds.....North around 10 mph until 0800, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 19 to 24. Highs
41 to 46. Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Lows around 18. Highs in the lower 40s.
West winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows around 12. Highs
in the lower 30s.
$$
WYZ279-202300-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of rain showers and snow showers
early in the morning. Patchy fog early in the
morning. Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....39-44.
24 hr trend......3 degrees cooler.
Min humidity........64-70 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northeast around 10 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1300, then
northeast.
Mixing Height.......600-2600 ft agl until 1300, then 2200-3200 ft
agl until 1700, then 800-1000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
through the night. Chance of snow showers after
midnight. Patchy fog early in the morning.
Chance of precipitation 40 percent.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......2 degrees cooler.
Max humidity........90-96 percent.
24 hr trend......7 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....North around 15 mph.
Mixing Height.......400-1000 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy. Patchy fog early in the morning.
Slight chance of rain showers early in the
morning. Slight chance of snow showers in the
morning. Slight chance of rain showers early in
the morning. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....37-42.
24 hr trend......1 degree cooler.
Min humidity........73-79 percent.
24 hr trend......14 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. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 1000. Southwest after
1700.
Chc of wetting rain.Less than 5 percent.
Transport winds.....North 10 to 15 mph until 1600, then northwest.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s. Winds
generally less than 10 mph.
.SATURDAY THROUGH MONDAY...Mostly clear. Lows 21 to 26. Highs in
the mid 40s. West winds 10 to 15 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow
showers. Lows around 14. Highs in the mid 30s.
.WEDNESDAY...Partly cloudy. Highs in the lower 30s.
$$
WYZ289-202300-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Partly cloudy. Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......2 degrees cooler.
Min humidity........56-62 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
northeast around 10 mph and gusty.
Ridge top winds.....South around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1300, then northeast.
Mixing Height.......200-1800 ft agl until 1200, then 1600-3200 ft
agl until 1700, then 600-800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
and snow showers in the late evening and
overnight. Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......2 degrees cooler.
Max humidity........83-89 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......400-800 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning. Slight chance
of snow showers until late afternoon. Slight
chance of rain showers. Chance of precipitation
20 percent.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......1 degree cooler.
Min humidity........63-69 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 0800. Southwest after
1300.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph until 1100, then east
until 1500, then southwest.
Mixing Height.......400-2400 ft agl until 1400, then 1200-2800 ft
agl until 1700, then 400-800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows in the upper 20s. Southwest
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the mid 20s.
Highs in the mid 40s. Southwest winds around 10 mph.
.MONDAY...Partly cloudy. Slight chance of snow showers. Lows in
the lower 20s. Highs in the mid 40s. West winds around 15 mph.
.TUESDAY...Colder. Partly cloudy with chance of snow showers.
Lows around 13. Highs in the lower 30s.
.WEDNESDAY...Partly cloudy. Highs around 30.
$$
WYZ300-202300-
Casper Mountain-
501 AM MST Thu Nov 20 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy fog early in the morning.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......Unchanged.
Min humidity........49-55 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southeast winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1500, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast 10 to 15 mph until 1300, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph until 1300, then east.
Mixing Height.......200-1800 ft agl until 1100, then 2200-4000 ft
agl until 1600, then 400-2000 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of rain showers and snow showers
after midnight. Chance of rain showers and snow
showers early in the morning. Chance of
precipitation 30 percent.
Chance of thunder...0 percent.
Min temperature.....29-34.
24 hr trend......3 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph with gusts to around
15 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......200-600 ft agl.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning. Chance of rain
showers and snow showers in the morning. Slight
chance of rain showers and snow showers late in
the morning. Chance of precipitation 30
percent.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......2 degrees cooler.
Min humidity........65-71 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph until 1500, then
upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 0800, then south until
1100, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1100, then south.
Mixing Height.......600-2600 ft agl until 1700, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows around 30. Southwest winds
around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 20s.
Highs in the mid 40s. Southwest winds around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers and slight chance
of showers. Lows around 20. Highs in the mid 40s. Southwest winds
around 10 mph.
.TUESDAY...Colder. Mostly cloudy. Chance of snow showers. Lows
around 11. Highs in the upper 20s.
.WEDNESDAY...Partly cloudy. Slight chance of snow showers in the
morning. Highs in the mid 20s.
$$