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

Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

75°F

24°C

Humidity 38%
Wind Speed SE 8 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 18 Aug 12:20 PM MDT
Extended Forecast for

11 Miles E Shell WY

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. Cloudy early, then becoming mostly sunny, with a high near 62. Breezy, with a southwest wind 10 to 17 mph becoming west northwest. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

    High: 62 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Scattered showers and thunderstorms before 9pm, then isolated showers between 9pm and 10pm. Some of the storms could be severe. Partly cloudy, with a low around 47. Southwest wind 5 to 11 mph becoming east after midnight. Chance of precipitation is 50%.

    Low: 47 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. East southeast wind 5 to 13 mph becoming west northwest in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. West northwest wind 5 to 11 mph becoming east southeast after midnight.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Southeast wind 5 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. West northwest wind 5 to 11 mph becoming east southeast after midnight. Winds could gust as high as 25 mph.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 71. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. Cloudy early, then becoming mostly sunny, with a high near 62. Breezy, with a southwest wind 10 to 17 mph becoming west northwest. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Tonight
Scattered showers and thunderstorms before 9pm, then isolated showers between 9pm and 10pm. Some of the storms could be severe. Partly cloudy, with a low around 47. Southwest wind 5 to 11 mph becoming east after midnight. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 65. East southeast wind 5 to 13 mph becoming west northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 51. West northwest wind 5 to 11 mph becoming east southeast after midnight.
Thursday
Sunny, with a high near 70. Southeast wind 5 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 54. West northwest wind 5 to 11 mph becoming east southeast after midnight. Winds could gust as high as 25 mph.
Friday
Mostly sunny, with a high near 73. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 71. Chance of precipitation is 20%.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles E Shell WY
 44.55°N 107.56°W (Elev. 8432 ft)
Last Update:
11:47 am MDT Aug 18, 2026
Forecast Valid:
12pm MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation