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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

28°F

-2°C

Humidity 58%
Wind Speed N 0 MPH
Barometer 30.4 in (1029.46 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 30 Dec 11:35 AM MST
Extended Forecast for

Greybull WY

  • Today

    Today: Sunny, with a high near 40. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 20. Southeast wind 3 to 5 mph.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. Southeast wind 3 to 5 mph.

    Low: 22 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 46. Light southeast wind.

    High: 46 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. Light south southeast wind.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Friday Night

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

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 40. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 20. Southeast wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 45. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 22. Southeast wind 3 to 5 mph.
New Year's Day
Mostly cloudy, with a high near 46. Light southeast wind.
Thursday Night
Mostly cloudy, with a low around 26. Light south southeast wind.
Friday
Mostly sunny, with a high near 49. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greybull WY
 44.49°N 108.04°W (Elev. 3973 ft)
Last Update:
10:18 am MST Dec 30, 2025
Forecast Valid:
11am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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