Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

Lat: 44.5174°NLon: 108.0752°WElev: 3934.0ft.

Mostly Cloudy

30°F

-1°C

Humidity 36%
Wind Speed NW 18 MPH
Barometer 29.45 in (997.29 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 18 Feb 10:30 AM MST
Extended Forecast for

20 Miles NNE Greybull/S Big Horn Airport WY

Winter Weather Advisory February 18, 05:00pm until February 19, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Today

    Today: A 30 percent chance of snow showers, mainly between 11am and 5pm.  Partly sunny, with a high near 26. South southeast wind 9 to 13 mph.  Total daytime snow accumulation of around an inch possible.

    High: 26 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Snow showers, mainly before 2am. The snow could be heavy at times.  Patchy blowing snow between 8pm and 9pm. Low around 2. Wind chill values as low as -5. Blustery, with an east northeast wind 11 to 16 mph becoming north 5 to 10 mph after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 2 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: A chance of snow showers before 2pm, then a slight chance of snow showers after 3pm.  Mostly cloudy and cold, with a high near 9. Wind chill values as low as -5. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 9 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 4. Wind chill values as low as -5. Light and variable wind becoming south around 6 mph in the evening.

    Low: 4 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Friday

    Friday: A 20 percent chance of snow showers after 11am.  Mostly sunny, with a high near 18. South wind around 6 mph becoming west in the afternoon.

    High: 18 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 8. Southwest wind around 6 mph.

    Low: 8 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow showers after 11am.  Sunny, with a high near 21. West southwest wind around 7 mph.

    High: 21 °F

    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of snow showers, mainly between 11am and 5pm. Partly sunny, with a high near 26. South southeast wind 9 to 13 mph. Total daytime snow accumulation of around an inch possible.
Tonight
Snow showers, mainly before 2am. The snow could be heavy at times. Patchy blowing snow between 8pm and 9pm. Low around 2. Wind chill values as low as -5. Blustery, with an east northeast wind 11 to 16 mph becoming north 5 to 10 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday
A chance of snow showers before 2pm, then a slight chance of snow showers after 3pm. Mostly cloudy and cold, with a high near 9. Wind chill values as low as -5. Calm wind becoming southwest around 5 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Thursday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 4. Wind chill values as low as -5. Light and variable wind becoming south around 6 mph in the evening.
Friday
A 20 percent chance of snow showers after 11am. Mostly sunny, with a high near 18. South wind around 6 mph becoming west in the afternoon.
Friday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 8. Southwest wind around 6 mph.
Saturday
A 20 percent chance of snow showers after 11am. Sunny, with a high near 21. West southwest wind around 7 mph.
Saturday Night
Mostly clear, with a low around 11.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Partly cloudy, with a low around 19.
Monday
Sunny, with a high near 38. Breezy.
Monday Night
A slight chance of snow showers. Partly cloudy, with a low around 26. Breezy.
Tuesday
A chance of snow showers. Partly sunny, with a high near 35. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
20 Miles NNE Greybull/S Big Horn Airport WY
 44.8°N 107.96°W (Elev. 7539 ft)
10:02 am MST Feb 18, 2026
10am MST Feb 18, 2026-6pm MST Feb 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database