National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

30°F

-1°C

Humidity 54%
Wind Speed NNE 3 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 21 Jan 01:00 PM MST
Extended Forecast for

Basin WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 32. West northwest wind 5 to 8 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 8. Light and variable wind.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. Light northwest wind becoming north northwest 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 3. Wind chill values as low as -5. Northwest wind 8 to 10 mph.

    Low: 3 °F

    Increasing
    Clouds

  • Friday

    Friday: A 20 percent chance of snow showers before 11am. Mostly cloudy, with a high near 17. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 17 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -6. Northwest wind 6 to 11 mph becoming light and variable after midnight.

    Low: -6 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 21. Light and variable wind.

    High: 21 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 0.

    Low: 0 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 32. West northwest wind 5 to 8 mph.
Tonight
Partly cloudy, with a low around 8. Light and variable wind.
Thursday
Mostly sunny, with a high near 28. Light northwest wind becoming north northwest 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 3. Wind chill values as low as -5. Northwest wind 8 to 10 mph.
Friday
A 20 percent chance of snow showers before 11am. Mostly cloudy, with a high near 17. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around -6. Northwest wind 6 to 11 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 21. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 0.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Mostly clear, with a low around 0.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Basin WY
 44.39°N 108.06°W (Elev. 3967 ft)
Last Update:
12:17 pm MST Jan 21, 2026
Forecast Valid:
1pm MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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