Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

A Few Clouds

85°F

29°C

Humidity 19%
Wind Speed SW 8 mph
Barometer 30.03 in (1009.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 4 Sep 5:53 pm MDT
Extended Forecast for

2 Miles ESE Custer County Airport SD

  • Tonight

    Tonight: Mostly clear, with a low around 64. Southeast wind 5 to 7 mph becoming light and variable  after midnight. Winds could gust as high as 17 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 88. West wind 3 to 8 mph. Winds could gust as high as 18 mph.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63. Southwest wind 5 to 7 mph becoming calm  after midnight. Winds could gust as high as 15 mph.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 86. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. Southeast wind 5 to 7 mph becoming west after midnight. Winds could gust as high as 17 mph.

    Low: 61 °F

    Chance
    T-storms

  • Labor Day

    Labor Day: Partly sunny, with a high near 81. West wind 6 to 15 mph, with gusts as high as 33 mph.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Southeast wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88. West wind 3 to 8 mph. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 63. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 86. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind 5 to 7 mph becoming west after midnight. Winds could gust as high as 17 mph.
Labor Day
Partly sunny, with a high near 81. West wind 6 to 15 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Custer County Airport SD
 43.72°N 103.57°W (Elev. 5545 ft)
6:41 pm MDT Sep 4, 2026
6pm MDT Sep 4, 2026-6pm MDT Sep 11, 2026
 
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Additional Resources

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