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

Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

59°F

15°C

Humidity 58%
Wind Speed Calm
Barometer 30.36 in (1022.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 26 Aug 7:53 am MDT
Extended Forecast for

Hill City SD

  • Today

    Today: Mostly sunny, with a high near 78. Light and variable wind. Winds could gust as high as 17 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Light and variable wind. Winds could gust as high as 18 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. West wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 18 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 78. Light and variable wind. Winds could gust as high as 17 mph.
Tonight
Partly cloudy, with a low around 57. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 61. Light and variable wind. Winds could gust as high as 18 mph.
Friday
Mostly sunny, with a high near 87. West wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Partly cloudy, with a low around 62. Calm wind.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.56°W (Elev. 5161 ft)
Last Update:
6:26 am MDT Aug 26, 2026
Forecast Valid:
8am MDT Aug 26, 2026-6pm MDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation