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

Early Heat Wave in the West; Fire Concerns in the 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. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. 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

70°F

21°C

Humidity 20%
Wind Speed WNW 17 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 Mar 04:53 PM MDT
Extended Forecast for

4 Miles N Greybull/S Big Horn Airport WY

  • This Afternoon

    This Afternoon: Isolated showers. Mostly cloudy, with a high near 68. Northwest wind around 7 mph. Chance of precipitation is 20%.

    High: 68 °F

    Isolated
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 5 to 7 mph becoming east southeast after midnight.

    Low: 40 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Southeast wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. West wind 6 to 11 mph becoming light and variable.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Southeast wind 6 to 9 mph becoming west southwest in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. West wind 7 to 10 mph becoming east in the evening.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76. South southeast wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers. Mostly cloudy, with a high near 68. Northwest wind around 7 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 5 to 7 mph becoming east southeast after midnight.
Wednesday
Mostly sunny, with a high near 71. Southeast wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 41. West wind 6 to 11 mph becoming light and variable.
Thursday
Mostly sunny, with a high near 73. Southeast wind 6 to 9 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 43. West wind 7 to 10 mph becoming east in the evening.
Friday
Mostly sunny, with a high near 76. South southeast wind 7 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 36. Breezy.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Greybull/S Big Horn Airport WY
 44.58°N 108.08°W (Elev. 4800 ft)
Last Update:
4:33 pm MDT Mar 17, 2026
Forecast Valid:
5pm MDT Mar 17, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation