Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

60°F

16°C

Humidity 80%
Wind Speed NE 5 mph
Barometer 30.09 in (1011.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Aug 5:53 am MDT
Extended Forecast for

Mount Rushmore SD

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 86. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 65 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 59. East wind around 5 mph becoming calm  in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 70%.

    Low: 59 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 68. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 16 mph.  Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 59. Southeast wind around 5 mph becoming calm  in the evening. Winds could gust as high as 15 mph.  Chance of precipitation is 90%.

    Low: 59 °F

    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °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 58.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon.  Partly sunny, with a high near 73.

    High: 73 °F

    Showers

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 86. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 22 mph.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. East wind around 5 mph becoming calm in the evening. 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 68. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 59. Southeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph. 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 75. Chance of precipitation is 60%.
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 58.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 73.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Partly cloudy, with a low around 57.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Rushmore SD
 43.87°N 103.46°W (Elev. 5000 ft)
3:11 am MDT Aug 11, 2026
6am MDT Aug 11, 2026-6pm MDT Aug 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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