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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Clear

82°F

28°C

Humidity 26%
Wind Speed NNE 6 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 06:20 PM MDT
Extended Forecast for

4 Miles W Shell WY

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 63. Breezy, with a west northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

    Low: 63 °F

    Slight Chance
    T-storms and
    Breezy then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 91. South wind 3 to 6 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. South southeast wind 5 to 7 mph becoming east in the evening.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Calm wind becoming south around 6 mph in the afternoon.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. South southeast wind 5 to 10 mph becoming east in the evening.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. East wind 5 to 8 mph becoming west in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. North wind around 8 mph becoming east northeast after midnight.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 61.

    Low: 61 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 63. Breezy, with a west northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Monday
Sunny, with a high near 91. South wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 63. South southeast wind 5 to 7 mph becoming east in the evening.
Tuesday
Sunny and hot, with a high near 98. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 66. South southeast wind 5 to 10 mph becoming east in the evening.
Wednesday
Sunny and hot, with a high near 99. East wind 5 to 8 mph becoming west in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. North wind around 8 mph becoming east northeast after midnight.
Thursday
Sunny, with a high near 92.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 61.
Friday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 87.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 86.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Shell WY
 44.53°N 107.86°W (Elev. 4140 ft)
Last Update:
5:13 pm MDT Aug 17, 2025
Forecast Valid:
6pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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