Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. 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 49%
Wind Speed ENE 6 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Jul 10:55 AM MDT
Extended Forecast for

Greybull/S Big Horn Airport WY

  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm.  Mostly sunny, with a high near 81. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am.  Low around 54. Breezy, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 34 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers and
    Breezy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon.  Cloudy, then gradually becoming mostly sunny, with a high near 74. Northwest wind 9 to 13 mph.  Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Light southeast wind becoming south southeast 5 to 9 mph in the morning.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. East wind 5 to 8 mph becoming west northwest after midnight.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 91. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 81. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Low around 54. Breezy, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 74. Northwest wind 9 to 13 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 92. Light southeast wind becoming south southeast 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 58. East wind 5 to 8 mph becoming west northwest after midnight.
Friday
Mostly sunny, with a high near 91. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 94.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 59.
Monday
Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Greybull/S Big Horn Airport WY
 44.51°N 108.07°W (Elev. 3799 ft)
9:43 am MDT Jul 15, 2025
11am MDT Jul 15, 2025-6pm MDT Jul 21, 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