Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

58°F

14°C

Humidity 93%
Wind Speed E 9 mph
Barometer 30.10 in (1014.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 13 Aug 7:53 pm MDT
Extended Forecast for

Hill City SD

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 9pm.  Patchy fog.  Otherwise, cloudy, with a low around 57. Calm wind. Winds could gust as high as 16 mph.  Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon.  Cloudy, then gradually becoming mostly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the morning. Winds could gust as high as 18 mph.  Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am.  Mostly cloudy, with a low around 55. Light north wind. Winds could gust as high as 16 mph.  Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 9am.  High near 72. Light north wind. Winds could gust as high as 15 mph.  Chance of precipitation is 90%.

    High: 72 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm.  Partly cloudy, with a low around 52. Calm wind.  Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then showers and thunderstorms likely after noon.  Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph. Winds could gust as high as 17 mph.  Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 54.

    Low: 54 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers after midnight.  Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely after 9pm. Patchy fog. Otherwise, cloudy, with a low around 57. Calm wind. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Friday
A chance of showers, with thunderstorms also possible after noon. Cloudy, then gradually becoming mostly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 55. Light north wind. Winds could gust as high as 16 mph. Chance of precipitation is 60%.
Saturday
Showers likely, then showers and possibly a thunderstorm after 9am. High near 72. Light north wind. Winds could gust as high as 15 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 52. Calm wind. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm before noon, then showers and thunderstorms likely after noon. Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph. Winds could gust as high as 17 mph. Chance of precipitation is 70%.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 54.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Monday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 55.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 78.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.56°W (Elev. 5161 ft)
5:46 pm MDT Aug 13, 2026
8pm MDT Aug 13, 2026-6pm MDT Aug 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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