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

8°C

46°F

Humidity 83%
Wind Speed SE 13 km/h
Barometer 1016.8 mb (30.05 in)
Dewpoint 5°C (41°F)
Visibility 16 km
Wind Chill6°C (42°F)
Last update 20 May 6:53 pm MDT
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • Tonight

    Tonight: Partly cloudy, with a low around 2. East wind 11 to 21 km/h becoming southwest after midnight. Winds could gust as high as 37 km/h.

    Low: 2 °C

    Partly Cloudy

  • Thursday

    Thursday: Isolated showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 13. South wind 5 to 13 km/h, with gusts as high as 34 km/h. Chance of precipitation is 70%.

    High: 13 °C

    Mostly Cloudy
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then rain after midnight. Low around 3. East wind 5 to 10 km/h becoming northwest 18 to 23 km/h after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 100%.

    Low: 3 °C

    Showers

  • Friday

    Friday: Rain likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 9. Northwest wind 19 to 24 km/h decreasing to 13 to 18 km/h in the afternoon. Winds could gust as high as 47 km/h. Chance of precipitation is 60%.

    High: 9 °C

    Rain Likely
    then Chance
    Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. North wind 5 to 14 km/h becoming west after midnight. Winds could gust as high as 35 km/h.

    Low: 2 °C

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 16. West wind 5 to 14 km/h becoming east in the afternoon. Winds could gust as high as 27 km/h.

    High: 16 °C

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 7.

    Low: 7 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 23.

    High: 23 °C

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 11.

    Low: 11 °C

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 2. East wind 11 to 21 km/h becoming southwest after midnight. Winds could gust as high as 37 km/h.
Thursday
Isolated showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 13. South wind 5 to 13 km/h, with gusts as high as 34 km/h. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm before midnight, then rain after midnight. Low around 3. East wind 5 to 10 km/h becoming northwest 18 to 23 km/h after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 100%.
Friday
Rain likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 9. Northwest wind 19 to 24 km/h decreasing to 13 to 18 km/h in the afternoon. Winds could gust as high as 47 km/h. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 2. North wind 5 to 14 km/h becoming west after midnight. Winds could gust as high as 35 km/h.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 16. West wind 5 to 14 km/h becoming east in the afternoon. Winds could gust as high as 27 km/h.
Saturday Night
Mostly clear, with a low around 7.
Sunday
Sunny, with a high near 23.
Sunday Night
Mostly clear, with a low around 11.
Memorial Day
Sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 24.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 12.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.87°N 103.52°W (Elev. 6148 m)
Last Update:
7:36 pm MDT May 20, 2026
Forecast Valid:
7pm MDT May 20, 2026-6pm MDT May 27, 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