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

South Big Horn County Airport (KGEY)

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

Clear

28°C

82°F

Humidity 20%
Wind Speed NNW 6 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 3°C (38°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 12 Jul 09:00 PM MDT
Extended Forecast for

Greybull/S Big Horn Airport WY

  • Tonight

    Tonight: Mostly clear, with a low around 14. Northwest wind 9 to 14 km/h becoming light and variable after midnight.

    Low: 14 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 34. Calm wind becoming south 5 to 10 km/h in the morning.

    High: 34 °C

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17. North northeast wind 6 to 11 km/h becoming light and variable.

    Low: 17 °C

    Mostly Clear

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms after noon. Sunny and hot, with a high near 37. Light and variable wind becoming north northwest 11 to 16 km/h in the morning. Winds could gust as high as 32 km/h.

    High: 37 °C

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 16. North northwest wind 13 to 18 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.

    Low: 16 °C

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 29. Breezy, with a northwest wind 14 to 19 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 48 km/h. Chance of precipitation is 40%.

    High: 29 °C

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 13. Breezy, with a northwest wind 26 to 29 km/h, with gusts as high as 48 km/h.

    Low: 13 °C

    Breezy.
    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 26.

    High: 26 °C

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 11.

    Low: 11 °C

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 14. Northwest wind 9 to 14 km/h becoming light and variable after midnight.
Sunday
Sunny, with a high near 34. Calm wind becoming south 5 to 10 km/h in the morning.
Sunday Night
Mostly clear, with a low around 17. North northeast wind 6 to 11 km/h becoming light and variable.
Monday
A 10 percent chance of showers and thunderstorms after noon. Sunny and hot, with a high near 37. Light and variable wind becoming north northwest 11 to 16 km/h in the morning. Winds could gust as high as 32 km/h.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 16. North northwest wind 13 to 18 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.
Tuesday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 29. Breezy, with a northwest wind 14 to 19 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 48 km/h. Chance of precipitation is 40%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 13. Breezy, with a northwest wind 26 to 29 km/h, with gusts as high as 48 km/h.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 26.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 11.
Thursday
Sunny, with a high near 31.
Thursday Night
Mostly clear, with a low around 14.
Friday
Mostly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Greybull/S Big Horn Airport WY
 44.51°N 108.07°W (Elev. 3799 m)
Last Update:
8:13 pm MDT Jul 12, 2025
Forecast Valid:
9pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation