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 >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

36°F

2°C

Humidity 40%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 19 Jan 05:00 PM MST
Extended Forecast for

20 Miles NNE Greybull/S Big Horn Airport WY

  • Tonight

    Tonight: Mostly clear, with a low around 19. Northwest wind around 8 mph becoming east southeast after midnight.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Snow showers likely, mainly before 2pm.  Cloudy through mid morning, then gradual clearing, with a high near 23. Wind chill values as low as zero. Windy, with a north wind 11 to 16 mph increasing to 21 to 26 mph in the morning. Winds could gust as high as 40 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Snow Showers
    Likely and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13. North wind 7 to 10 mph becoming south after midnight.

    Low: 13 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of snow showers before 11am.  Mostly sunny, with a high near 18. North northwest wind 8 to 11 mph, with gusts as high as 22 mph.

    High: 18 °F

    Slight Chance
    Snow Showers
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. South southwest wind around 6 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 18. Northwest wind 6 to 9 mph.

    High: 18 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers.  Mostly cloudy, with a low around 4. West northwest wind around 9 mph.

    Low: 4 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A 20 percent chance of snow showers.  Partly sunny, with a high near 12.

    High: 12 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 19. Northwest wind around 8 mph becoming east southeast after midnight.
Tuesday
Snow showers likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 23. Wind chill values as low as zero. Windy, with a north wind 11 to 16 mph increasing to 21 to 26 mph in the morning. Winds could gust as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Mostly clear, with a low around 13. North wind 7 to 10 mph becoming south after midnight.
Wednesday
A 20 percent chance of snow showers before 11am. Mostly sunny, with a high near 18. North northwest wind 8 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 10. South southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 18. Northwest wind 6 to 9 mph.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 4. West northwest wind around 9 mph.
Friday
A 20 percent chance of snow showers. Partly sunny, with a high near 12.
Friday Night
Partly cloudy, with a low around 5.
Saturday
A 20 percent chance of snow showers. Mostly sunny, with a high near 19.
Saturday Night
A slight chance of snow showers. Partly cloudy, with a low around 12.
Sunday
A slight chance of snow showers. Mostly sunny, with a high near 25.
Sunday Night
A slight chance of snow showers. Mostly cloudy, with a low around 19.
Monday
A slight chance of snow showers. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles NNE Greybull/S Big Horn Airport WY
 44.8°N 107.96°W (Elev. 7539 ft)
4:47 pm MST Jan 19, 2026
5pm MST Jan 19, 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