Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

41°F

5°C

Humidity 70%
Wind Speed S 4 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 11 Dec 09:53 AM MST
Extended Forecast for

5 Miles WSW Shell WY

  • Today

    Today: A 30 percent chance of rain, mainly after 4pm.  Mostly cloudy, with a high near 51. East wind 5 to 7 mph.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tonight

    Tonight: A chance of rain before 2am, then a slight chance of rain and snow.  Mostly cloudy, with a low around 29. North wind around 6 mph becoming west after midnight.  Chance of precipitation is 30%.

    Low: 29 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Friday

    Friday: A 20 percent chance of snow before 11am.  Mostly cloudy, with a high near 39. Light and variable wind.

    High: 39 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. Light and variable wind becoming southeast 5 to 7 mph in the evening.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 39. Northwest wind around 6 mph becoming south southeast in the afternoon.

    High: 39 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Southeast wind around 7 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51. South southeast wind around 6 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 51. East wind 5 to 7 mph.
Tonight
A chance of rain before 2am, then a slight chance of rain and snow. Mostly cloudy, with a low around 29. North wind around 6 mph becoming west after midnight. Chance of precipitation is 30%.
Friday
A 20 percent chance of snow before 11am. Mostly cloudy, with a high near 39. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 25. Light and variable wind becoming southeast 5 to 7 mph in the evening.
Saturday
Partly sunny, with a high near 39. Northwest wind around 6 mph becoming south southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 25. Southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 51. South southeast wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 31.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Shell WY
 44.48°N 107.89°W (Elev. 4199 ft)
8:02 am MST Dec 11, 2025
10am MST Dec 11, 2025-6pm MST Dec 17, 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