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.

Fair

82°F

28°C

Humidity 29%
Wind Speed E 12 G 17 mph
Barometer 30.08 in (1011.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 4 Sep 11:53 am MDT
Extended Forecast for

6 Miles WSW Hermosa SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. South wind 10 to 13 mph, with gusts as high as 26 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 96. West wind 5 to 9 mph becoming southeast in the morning. Winds could gust as high as 21 mph.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. East wind 5 to 8 mph becoming west in the evening. Winds could gust as high as 18 mph.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92. West wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. Southeast wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 18 mph.

    Low: 67 °F

    Chance
    T-storms

  • Labor Day

    Labor Day: Partly sunny, with a high near 90. Breezy.

    High: 90 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 93. South wind 10 to 13 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 69. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. West wind 5 to 9 mph becoming southeast in the morning. Winds could gust as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 68. East wind 5 to 8 mph becoming west in the evening. Winds could gust as high as 18 mph.
Sunday
Mostly sunny, with a high near 92. West wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 18 mph.
Labor Day
Partly sunny, with a high near 90. Breezy.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Hermosa SD
 43.79°N 103.31°W (Elev. 3799 ft)
12:31 pm MDT Sep 4, 2026
12pm MDT Sep 4, 2026-6pm MDT Sep 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database