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.

Mostly Cloudy

62°F

17°C

Humidity 73%
Wind Speed E 8 mph
Barometer 30.12 in (1014.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 13 Aug 3:53 pm MDT
Extended Forecast for

8 Miles NNE Hill City SD

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms.  Patchy fog.  Otherwise, cloudy, with a high near 63. Southeast wind around 5 mph, with gusts as high as 21 mph.

    High: 63 °F

    Chance
    T-storms and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 9pm.  Patchy fog.  Otherwise, cloudy, with a low around 55. Southeast wind 3 to 5 mph. Winds could gust as high as 20 mph.  Chance of precipitation is 70%.

    Low: 55 °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 75. Light and variable wind becoming south around 5 mph. Winds could gust as high as 18 mph.  Chance of precipitation is 40%.

    High: 75 °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 51. Light and variable wind. Winds could gust as high as 16 mph.  Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 9am.  High near 70. Light and variable wind. Winds could gust as high as 16 mph.  Chance of precipitation is 80%.

    High: 70 °F

    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers and thunderstorms likely after 9am.  Mostly sunny, with a high near 72. Chance of precipitation is 70%.

    High: 72 °F

    Chance
    Showers then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 50.

    Low: 50 °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 78.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a high near 63. Southeast wind around 5 mph, with gusts as high as 21 mph.
Tonight
A chance of showers and thunderstorms, then showers likely after 9pm. Patchy fog. Otherwise, cloudy, with a low around 55. Southeast wind 3 to 5 mph. Winds could gust as high as 20 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 75. Light and variable wind becoming south around 5 mph. 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 51. Light and variable 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 70. Light and variable wind. Winds could gust as high as 16 mph. Chance of precipitation is 80%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 48. Light and variable wind.
Sunday
A chance of showers, then showers and thunderstorms likely after 9am. Mostly sunny, with a high near 72. Chance of precipitation is 70%.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 50.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 77.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 49.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 50.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Hill City SD
 44.04°N 103.54°W (Elev. 5653 ft)
2:41 pm MDT Aug 13, 2026
4pm MDT Aug 13, 2026-6pm MDT Aug 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database