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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

69°F

21°C

Humidity 25%
Wind Speed ESE 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 12 May 09:53 PM MDT
Extended Forecast for

20 Miles NNE Greybull/S Big Horn Airport WY

  • Tonight

    Tonight: Mostly clear, with a low around 53. Light east northeast wind becoming east 5 to 9 mph after midnight.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 4pm. Mostly sunny, with a high near 74. Breezy, with a south wind 15 to 20 mph becoming south 6 to 11 mph. Winds could gust as high as 28 mph.

    High: 74 °F

    Breezy. Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before 11pm. Snow level 12100 feet lowering to 8100 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 42. South wind 8 to 14 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56. Very windy, with a west wind 7 to 17 mph increasing to 26 to 36 mph. Winds could gust as high as 49 mph.

    High: 56 °F

    Sunny and
    Very Windy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Windy, with a west wind 26 to 31 mph becoming light and variable after midnight. Winds could gust as high as 48 mph.

    Low: 40 °F

    Mostly Clear
    and Windy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 58. Breezy, with a west wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 58 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Breezy, with a west northwest wind 13 to 18 mph becoming east southeast 5 to 10 mph in the evening. Winds could gust as high as 32 mph.

    Low: 38 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow showers after midnight. Snow level 8600 feet lowering to 7500 feet after midnight . Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 40%.

    Low: 35 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 53. Light east northeast wind becoming east 5 to 9 mph after midnight.
Wednesday
A 30 percent chance of showers, mainly after 4pm. Mostly sunny, with a high near 74. Breezy, with a south wind 15 to 20 mph becoming south 6 to 11 mph. Winds could gust as high as 28 mph.
Wednesday Night
A 30 percent chance of showers, mainly before 11pm. Snow level 12100 feet lowering to 8100 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 42. South wind 8 to 14 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 56. Very windy, with a west wind 7 to 17 mph increasing to 26 to 36 mph. Winds could gust as high as 49 mph.
Thursday Night
Mostly clear, with a low around 40. Windy, with a west wind 26 to 31 mph becoming light and variable after midnight. Winds could gust as high as 48 mph.
Friday
Sunny, with a high near 58. Breezy, with a west wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Partly cloudy, with a low around 38. Breezy, with a west northwest wind 13 to 18 mph becoming east southeast 5 to 10 mph in the evening. Winds could gust as high as 32 mph.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
A chance of rain and snow showers after midnight. Snow level 8600 feet lowering to 7500 feet after midnight . Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 40%.
Sunday
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
Sunday Night
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 29. Blustery.
Monday
A chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 39. Breezy.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
A slight chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 49.
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Forecast Area
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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)
Last Update:
10:02 pm MDT May 12, 2026
Forecast Valid:
10pm MDT May 12, 2026-6pm MDT May 19, 2026
 
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Additional Resources

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Chance of Precipitation