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

47°F

Humidity 63%
Wind Speed SW 6 km/h
Barometer 1012.4 mb (30.03 in)
Dewpoint 2°C (35°F)
Visibility 16 km
Last update 18 Jun 4:53 am MDT
Extended Forecast for

Custer SD

  • Today

    Today: A 20 percent chance of showers after noon. Mostly sunny, with a high near 20. Northwest wind 8 to 13 km/h, with gusts as high as 35 km/h.

    High: 20 °C

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 8. Northeast wind 5 to 8 km/h becoming calm. Winds could gust as high as 24 km/h.

    Low: 8 °C

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 22. Light and variable wind becoming east 8 to 13 km/h in the morning. Winds could gust as high as 34 km/h.

    High: 22 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 8. East wind 5 to 13 km/h, with gusts as high as 35 km/h.

    Low: 8 °C

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 19. East wind 5 to 10 km/h increasing to 13 to 18 km/h in the afternoon. Winds could gust as high as 40 km/h. Chance of precipitation is 70%.

    High: 19 °C

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 9. East wind 11 to 16 km/h becoming light northeast after midnight. Winds could gust as high as 40 km/h. Chance of precipitation is 100%.

    Low: 9 °C

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 16. Chance of precipitation is 90%.

    High: 16 °C

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 7.

    Low: 7 °C

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 17.

    High: 17 °C

    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers after noon. Mostly sunny, with a high near 20. Northwest wind 8 to 13 km/h, with gusts as high as 35 km/h.
Tonight
Partly cloudy, with a low around 8. Northeast wind 5 to 8 km/h becoming calm. Winds could gust as high as 24 km/h.
Juneteenth
Mostly sunny, with a high near 22. Light and variable wind becoming east 8 to 13 km/h in the morning. Winds could gust as high as 34 km/h.
Friday Night
Partly cloudy, with a low around 8. East wind 5 to 13 km/h, with gusts as high as 35 km/h.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 19. East wind 5 to 10 km/h increasing to 13 to 18 km/h in the afternoon. Winds could gust as high as 40 km/h. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 9. East wind 11 to 16 km/h becoming light northeast after midnight. Winds could gust as high as 40 km/h. Chance of precipitation is 100%.
Sunday
Showers and possibly a thunderstorm. High near 16. Chance of precipitation is 90%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 7.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 17.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 6.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 19.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 8.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 22.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Custer SD
 43.76°N 103.6°W (Elev. 5417 m)
Last Update:
4:57 am MDT Jun 18, 2026
Forecast Valid:
5am MDT Jun 18, 2026-6pm MDT Jun 24, 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