Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

72°F

22°C

Humidity 38%
Wind Speed NW 9 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 29 Sep 07:53 PM MDT
Extended Forecast for

4 Miles N Greybull/S Big Horn Airport WY

  • Tonight

    Tonight: Mostly clear, with a low around 55. East wind 5 to 10 mph becoming south after midnight.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. South southeast wind 8 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Isolated showers and thunderstorms before midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South southwest wind 8 to 11 mph becoming north northeast after midnight.  Chance of precipitation is 20%.

    Low: 51 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75. South southeast wind 6 to 9 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Southeast wind around 10 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Southeast wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then a chance of showers after midnight.  Mostly cloudy, with a low around 50. Northwest wind 11 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 63. Chance of precipitation is 50%.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before midnight.  Partly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 55. East wind 5 to 10 mph becoming south after midnight.
Tuesday
Mostly sunny, with a high near 79. South southeast wind 8 to 10 mph.
Tuesday Night
Isolated showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South southwest wind 8 to 11 mph becoming north northeast after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 75. South southeast wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 51. Southeast wind around 10 mph.
Thursday
Sunny, with a high near 76. Southeast wind 6 to 9 mph becoming west northwest in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 50. Northwest wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 42. Breezy.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 55.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 37.
Monday
A chance of showers. Mostly cloudy, with a high near 51.
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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)
7:17 pm MDT Sep 29, 2025
8pm MDT Sep 29, 2025-6pm MDT Oct 6, 2025
 
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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