Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

37°F

3°C

Humidity 64%
Wind Speed NW 16 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 09 Dec 07:05 PM MST
Extended Forecast for

8 Miles S Shell WY

  • Tonight

    Tonight: Scattered snow showers, mainly after 4am.  Mostly cloudy, with a low around 33. Breezy, with a north wind 8 to 16 mph becoming southeast after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 30%.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then
    Scattered
    Snow Showers

  • Wednesday

    Wednesday: Scattered snow showers before 8am, then scattered rain and snow showers between 8am and 11am, then scattered rain showers after 11am.  Mostly cloudy, with a high near 49. East southeast wind around 8 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 49 °F

    Scattered
    Rain/Snow
    then
    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40. East southeast wind around 8 mph.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 52. Southeast wind around 7 mph becoming northwest in the afternoon.

    High: 52 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain showers before 8pm, then a chance of rain and snow showers.  Mostly cloudy, with a low around 32. North northwest wind 6 to 8 mph.  Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A 20 percent chance of snow showers before 11am.  Partly sunny, with a high near 43. South southwest wind 3 to 6 mph.

    High: 43 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29. Southeast wind 6 to 8 mph becoming northeast in the evening.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered snow showers, mainly after 4am. Mostly cloudy, with a low around 33. Breezy, with a north wind 8 to 16 mph becoming southeast after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Wednesday
Scattered snow showers before 8am, then scattered rain and snow showers between 8am and 11am, then scattered rain showers after 11am. Mostly cloudy, with a high near 49. East southeast wind around 8 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, with a low around 40. East southeast wind around 8 mph.
Thursday
Partly sunny, with a high near 52. Southeast wind around 7 mph becoming northwest in the afternoon.
Thursday Night
A chance of rain showers before 8pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. North northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday
A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 43. South southwest wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 29. Southeast wind 6 to 8 mph becoming northeast in the evening.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles S Shell WY
 44.41°N 107.76°W (Elev. 4905 ft)
6:33 pm MST Dec 9, 2025
7pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database