Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

51°F

11°C

Humidity 54%
Wind Speed NW 5 mph
Barometer 30.34 in (1021.6 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 9 Sep 4:53 am MDT
Extended Forecast for

Hill City SD

  • Today

    Today: Sunny, with a high near 74. Calm wind becoming west around 5 mph. Winds could gust as high as 17 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 17 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. West wind 5 to 8 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. North wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 24 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 74. Calm wind becoming west around 5 mph. Winds could gust as high as 17 mph.
Tonight
Mostly clear, with a low around 47. Calm wind.
Thursday
Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Mostly clear, with a low around 57. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 17 mph.
Friday
Sunny, with a high near 79. West wind 5 to 8 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Partly cloudy, with a low around 46. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 24 mph.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 49.
Sunday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 69.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.56°W (Elev. 5161 ft)
2:36 am MDT Sep 9, 2026
5am MDT Sep 9, 2026-6pm MDT Sep 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database