Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

48°F

9°C

Humidity 53%
Wind Speed SE 4 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 Mar 04:05 AM MDT
Extended Forecast for

Greybull/S Big Horn Airport WY

  • Today

    Today: Sunny, with a high near 76. Southeast wind 5 to 10 mph becoming west in the afternoon.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West wind 6 to 11 mph becoming light and variable  in the evening.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. West wind 5 to 8 mph becoming calm  in the evening.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. West southwest wind 6 to 8 mph becoming southeast in the evening.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Breezy, with a southeast wind 5 to 10 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 77 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 34. Breezy.

    Low: 34 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 76. Southeast wind 5 to 10 mph becoming west in the afternoon.
Tonight
Partly cloudy, with a low around 37. West wind 6 to 11 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 40. West wind 5 to 8 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 44. West southwest wind 6 to 8 mph becoming southeast in the evening.
Saturday
Mostly sunny, with a high near 77. Breezy, with a southeast wind 5 to 10 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 33 mph.
Saturday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 34. Breezy.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Greybull/S Big Horn Airport WY
 44.51°N 108.07°W (Elev. 3799 ft)
3:49 am MDT Mar 18, 2026
4am MDT Mar 18, 2026-6pm MDT Mar 24, 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