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

81°F

27°C

Humidity 30%
Wind Speed SSE 10 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Aug 02:00 PM MDT
Extended Forecast for

13 Miles E Shell WY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. Partly sunny, with a high near 62. West southwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 62 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 5 to 11 mph becoming east northeast after midnight. Chance of precipitation is 50%.

    Low: 47 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. East southeast wind 5 to 13 mph becoming west northwest in the afternoon.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. West northwest wind 6 to 11 mph becoming light and variable after midnight.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Southeast wind 5 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. West northwest wind 5 to 11 mph becoming east southeast after midnight. Winds could gust as high as 24 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. Light and variable wind becoming west southwest 5 to 10 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. Mostly cloudy, with a high near 72. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. Partly sunny, with a high near 62. West southwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 5 to 11 mph becoming east northeast after midnight. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 66. 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 6 to 11 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 71. Southeast wind 5 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 55. West northwest wind 5 to 11 mph becoming east southeast after midnight. Winds could gust as high as 24 mph.
Friday
Mostly sunny, with a high near 73. Light and variable wind becoming west southwest 5 to 10 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. Mostly cloudy, with a high near 72. 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 69. Breezy.
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 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles E Shell WY
 44.53°N 107.5°W (Elev. 8819 ft)
Last Update:
2:03 pm MDT Aug 18, 2026
Forecast Valid:
2pm 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