Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

67°F

19°C

Humidity 81%
Wind Speed NE 6 mph
Barometer 30.11 in (1011.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 10 Aug 11:53 pm MDT
Extended Forecast for

8 Miles W Hill City SD

  • Overnight

    Overnight: Partly cloudy, with a low around 58. Light west wind.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. North wind around 6 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon.  Increasing clouds, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 60%.

    High: 75 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 51. East wind 3 to 6 mph. Winds could gust as high as 20 mph.  Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 64. Southeast wind 3 to 8 mph. Winds could gust as high as 25 mph.  Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 51. Chance of precipitation is 90%.

    Low: 51 °F

    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 71.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 58. Light west wind.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 56. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Wednesday
Showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. East wind 3 to 6 mph. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Thursday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 64. Southeast wind 3 to 8 mph. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 90%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 50.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 70.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 71.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Hill City SD
 43.95°N 103.74°W (Elev. 6398 ft)
12:31 am MDT Aug 11, 2026
12am MDT Aug 11, 2026-6pm MDT Aug 17, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database