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

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 38%
Wind Speed E 10 MPH
Barometer 29.59 in (1002.03 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 10 Oct 05:35 AM MDT
Extended Forecast for

Greybull WY

  • Today

    Today: Partly sunny, with a high near 80. Southeast wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 9pm. Low around 37. Breezy, with a north northeast wind 9 to 14 mph becoming northwest 16 to 21 mph in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °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 26 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 11 to 16 mph, with gusts as high as 28 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 52. West northwest wind 6 to 11 mph becoming light.

    High: 52 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 28. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 28 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers. Mostly sunny, with a high near 57. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 57 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Partly cloudy, with a low around 32.

    Low: 32 °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. Southeast wind 10 to 14 mph, with gusts as high as 23 mph.
Tonight
Showers, mainly after 9pm. Low around 37. Breezy, with a north northeast wind 9 to 14 mph becoming northwest 16 to 21 mph in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 80%. 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 26 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 11 to 16 mph, with gusts as high as 28 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 52. West northwest wind 6 to 11 mph becoming light.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 28. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 57. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 32.
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
A slight chance of showers. Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greybull WY
 44.49°N 108.04°W (Elev. 3973 ft)
Last Update:
2:47 am MDT Oct 10, 2026
Forecast Valid:
5am MDT Oct 10, 2026-6pm MDT Oct 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation