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

Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Overcast

37°F

3°C

Humidity 69%
Wind Speed NNW 12 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 01 Apr 12:20 AM MDT
Extended Forecast for

Greybull WY

  • Overnight

    Overnight: A 40 percent chance of showers, mainly before 3am. Mostly cloudy, with a low around 31. Northwest wind 5 to 10 mph.

    Low: 31 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 4pm. Mostly cloudy, with a high near 57. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 57 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming southeast in the evening. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61. East southeast wind 6 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    High: 61 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Rain showers likely before midnight, then rain and snow showers likely between midnight and 3am, then snow showers likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 29. Blustery, with a northwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Blustery.
    Showers
    Likely then
    Rain/Snow
    Likely

  • Friday

    Friday: Snow showers likely before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Windy, with a north northwest wind 17 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 70%.

    High: 46 °F

    Rain/Snow
    Likely and
    Windy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. Blustery, with a north northwest wind 13 to 18 mph becoming west southwest 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 25 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly before 3am. Mostly cloudy, with a low around 31. Northwest wind 5 to 10 mph.
Wednesday
A 30 percent chance of showers, mainly before 4pm. Mostly cloudy, with a high near 57. Calm wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming southeast in the evening. Chance of precipitation is 20%.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61. East southeast wind 6 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Thursday Night
Rain showers likely before midnight, then rain and snow showers likely between midnight and 3am, then snow showers likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 29. Blustery, with a northwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Windy, with a north northwest wind 17 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 70%.
Friday Night
Partly cloudy, with a low around 25. Blustery, with a north northwest wind 13 to 18 mph becoming west southwest 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 71.
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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:
11:48 pm MDT Mar 31, 2026
Forecast Valid:
12am MDT Apr 1, 2026-6pm MDT Apr 7, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation