Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Partly Cloudy

N/A

Humidity 29%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 18 Jul 06:30 PM MDT
Extended Forecast for

6 Miles NNW Greybull/S Big Horn Airport WY

Heat Advisory July 26, 07:14pm until July 26, 09:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory July 26, 07:14pm until July 26, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Tonight

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 95. South southeast wind 5 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 95 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 65. South southwest wind 6 to 11 mph becoming north northwest in the evening. Winds could gust as high as 22 mph.

    Low: 65 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. East southeast wind 5 to 7 mph becoming west in the afternoon.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. West northwest wind 6 to 10 mph becoming east southeast after midnight.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 96. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 64. West northwest wind 5 to 13 mph, with gusts as high as 23 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. North northwest wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 95. South southeast wind 5 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 65. South southwest wind 6 to 11 mph becoming north northwest in the evening. Winds could gust as high as 22 mph.
Tuesday
Sunny and hot, with a high near 98. East southeast wind 5 to 7 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 66. West northwest wind 6 to 10 mph becoming east southeast after midnight.
Wednesday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64. West northwest wind 5 to 13 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny and hot, with a high near 101.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Greybull/S Big Horn Airport WY
 44.6°N 108.12°W (Elev. 4770 ft)
6:02 pm MDT Jul 26, 2026
7pm MDT Jul 26, 2026-6pm MDT Aug 2, 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