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.

Thunderstorm in Vicinity

58°F

14°C

Humidity 90%
Wind Speed NW 5 mph
Barometer 30.28 in (1019.0 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 15 Aug 7:53 am MDT
Extended Forecast for

2 Miles WNW Custer SD

  • Today

    Today: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 67. Light and variable wind. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. Calm wind becoming south around 6 mph in the morning. Winds could gust as high as 18 mph.

    High: 73 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53. Light and variable wind. Winds could gust as high as 16 mph.

    Low: 53 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Calm wind becoming southwest around 6 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50.

    Low: 50 °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 73.

    High: 73 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 67. Light and variable wind. Winds could gust as high as 15 mph. Chance of precipitation is 70%.
Tonight
Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. Calm wind becoming south around 6 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53. Light and variable wind. Winds could gust as high as 16 mph.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Calm wind becoming southwest around 6 mph in the afternoon. Winds could gust as high as 17 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 73.
Wednesday Night
A chance of showers and thunderstorms before midnight. Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Custer SD
 43.78°N 103.63°W (Elev. 5600 ft)
Last Update:
6:21 am MDT Aug 15, 2026
Forecast Valid:
8am 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