Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

12°F

-11°C

Humidity 85%
Wind Speed NNW 3 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 20 Jan 06:20 AM MST
Extended Forecast for

12 Miles E Shell WY

  • Today

    Today: A 30 percent chance of snow showers, mainly before 2pm.  Cloudy, then gradual clearing during the afternoon, with a high near 22. Wind chill values as low as zero. Blustery, with a north wind 5 to 10 mph becoming northwest 12 to 17 mph in the morning. Winds could gust as high as 26 mph.

    High: 22 °F

    Chance Snow
    Showers and
    Blustery

  • Tonight

    Tonight: Mostly clear, with a low around 10. Wind chill values as low as -5. West wind 6 to 11 mph.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 20. Wind chill values as low as zero. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 20 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 7. Wind chill values as low as zero. West wind around 6 mph.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 18. West wind 5 to 8 mph.

    High: 18 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers.  Mostly cloudy, with a low around 2. Southwest wind around 6 mph.

    Low: 2 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A 20 percent chance of snow showers.  Partly sunny, with a high near 13. West wind around 7 mph.

    High: 13 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before 11pm.  Partly cloudy, with a low around -1.

    Low: -1 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of snow showers, mainly before 2pm. Cloudy, then gradual clearing during the afternoon, with a high near 22. Wind chill values as low as zero. Blustery, with a north wind 5 to 10 mph becoming northwest 12 to 17 mph in the morning. Winds could gust as high as 26 mph.
Tonight
Mostly clear, with a low around 10. Wind chill values as low as -5. West wind 6 to 11 mph.
Wednesday
Mostly sunny, with a high near 20. Wind chill values as low as zero. West wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 7. Wind chill values as low as zero. West wind around 6 mph.
Thursday
Mostly sunny, with a high near 18. West wind 5 to 8 mph.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 2. Southwest wind around 6 mph.
Friday
A 20 percent chance of snow showers. Partly sunny, with a high near 13. West wind around 7 mph.
Friday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around -1.
Saturday
Mostly sunny, with a high near 17.
Saturday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles E Shell WY
 44.55°N 107.53°W (Elev. 7710 ft)
6:33 am MST Jan 20, 2026
6am MST Jan 20, 2026-6pm MST Jan 26, 2026
 
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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