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

Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

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

Mostly Cloudy

63°F

17°C

Humidity 82%
Wind Speed NNW 8 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 11:35 PM MDT
Extended Forecast for

11 Miles E Shell WY

  • Tonight

    Tonight: Scattered showers, mainly between 1am and 2am. Mostly cloudy, with a low around 53. Northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 30%.

    Low: 53 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 69. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 69 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West wind 5 to 9 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: 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 23 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. West northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. North wind 6 to 10 mph becoming east after midnight.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

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

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers, mainly between 1am and 2am. Mostly cloudy, with a low around 53. Northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 69. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West wind 5 to 9 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Wednesday
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 23 mph.
Wednesday Night
Mostly clear, with a low around 53. West northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Thursday
Sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 56. North wind 6 to 10 mph becoming east after midnight.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles E Shell WY
 44.57°N 107.57°W (Elev. 7100 ft)
Last Update:
11:31 pm MDT Aug 17, 2026
Forecast Valid:
11pm MDT Aug 17, 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