Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

57°F

14°C

Humidity 40%
Wind Speed E 3 MPH
Barometer 29.59 in (1002.03 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 10 Oct 06:53 AM MDT
Extended Forecast for

Greybull/S Big Horn Airport WY

  • Today

    Today: Partly sunny, with a high near 80. South wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 9pm.  Low around 36. Breezy, with a west wind 10 to 15 mph becoming northwest 17 to 22 mph in the evening. Winds could gust as high as 37 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers before noon, then showers after 3pm.  High near 52. Breezy, with a northwest wind 11 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers.  Low around 30. Blustery, with a west northwest wind 14 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 30 °F

    Showers and
    Blustery

  • Columbus Day

    Columbus Day: A 30 percent chance of showers before noon.  Mostly cloudy, with a high near 53. West northwest wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 53 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 27. Northwest wind 5 to 10 mph becoming light west southwest  after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers.  Mostly sunny, with a high near 58. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 58 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers.  Partly cloudy, with a low around 31.

    Low: 31 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers.  Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 80. South wind 9 to 11 mph, with gusts as high as 23 mph.
Tonight
Showers, mainly after 9pm. Low around 36. Breezy, with a west wind 10 to 15 mph becoming northwest 17 to 22 mph in the evening. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers before noon, then showers after 3pm. High near 52. Breezy, with a northwest wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 30. Blustery, with a west northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
A 30 percent chance of showers before noon. Mostly cloudy, with a high near 53. West northwest wind 5 to 14 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 27. Northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 58. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 31.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 58.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Greybull/S Big Horn Airport WY
 44.51°N 108.07°W (Elev. 3799 ft)
6:31 am MDT Oct 10, 2026
7am MDT Oct 10, 2026-6pm MDT Oct 16, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database