Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

51°F

11°C

Humidity 89%
Wind Speed SE 4 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 28 Jun 04:53 AM MDT
Extended Forecast for

Greybull/S Big Horn Airport WY

  • Today

    Today: Sunny, with a high near 76. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Breezy, with a west wind 6 to 15 mph becoming east after midnight. Winds could gust as high as 23 mph.

    Low: 48 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 74. East southeast wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 74 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49. Breezy, with a west wind 12 to 17 mph becoming light and variable  after midnight. Winds could gust as high as 30 mph.

    Low: 49 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 80. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. North wind 5 to 7 mph becoming calm  after midnight.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming west around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 76. Light and variable wind becoming west 5 to 10 mph in the morning.
Tonight
Mostly cloudy, with a low around 48. Breezy, with a west wind 6 to 15 mph becoming east after midnight. Winds could gust as high as 23 mph.
Monday
Partly sunny, with a high near 74. East southeast wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 49. Breezy, with a west wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 80. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 52. North wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 85. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 54.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 92.
Friday Night
Partly cloudy, with a low around 55. Breezy.
Independence Day
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Greybull/S Big Horn Airport WY
 44.51°N 108.07°W (Elev. 3799 ft)
4:32 am MDT Jun 28, 2026
5am MDT Jun 28, 2026-6pm MDT Jul 4, 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