National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

57°F

14°C

Humidity 93%
Wind Speed W 7 mph
Barometer 30.28 in (1018.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 6:53 am MDT
Extended Forecast for

Mount Rushmore SD

  • Today

    Today: Showers likely and possibly a thunderstorm before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69. Light and variable wind. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 76. Calm wind becoming south around 5 mph. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

    High: 76 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 57. Light and variable wind becoming west around 5 mph after midnight. Winds could gust as high as 16 mph.

    Low: 57 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming east around 5 mph. Winds could gust as high as 17 mph.

    High: 81 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Light and variable wind.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 75.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 9am, then scattered showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69. Light and variable wind. Winds could gust as high as 15 mph. Chance of precipitation is 70%.
Tonight
A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. Calm wind.
Sunday
Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 76. Calm wind becoming south around 5 mph. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 57. Light and variable wind becoming west around 5 mph after midnight. Winds could gust as high as 16 mph.
Monday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming east around 5 mph. Winds could gust as high as 17 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Light and variable wind.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 54.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 75.
Wednesday Night
A chance of showers and thunderstorms before midnight. Mostly clear, with a low around 56.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Rushmore SD
 43.89°N 103.46°W (Elev. 5108 ft)
Last Update:
6:21 am MDT Aug 15, 2026
Forecast Valid:
7am MDT Aug 15, 2026-6pm MDT Aug 21, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation