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.

Fair

66°F

19°C

Humidity 68%
Wind Speed Calm
Barometer 30.09 in (1011.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 12 Aug 7:53 am MDT
Extended Forecast for

6 Miles NNW Keystone SD

  • Today

    Today: Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 79. Calm wind becoming southeast around 5 mph. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    High: 79 °F

    Mostly Cloudy
    then T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm after midnight. Low around 55. Light and variable wind. Winds could gust as high as 18 mph. Chance of precipitation is 90%.

    Low: 55 °F

    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 55. Southeast wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.

    Low: 55 °F

    Showers

  • Friday

    Friday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 80. Calm wind becoming east around 6 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 80 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Chance
    Showers then
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 76.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 79. Calm wind becoming southeast around 5 mph. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm after midnight. Low around 55. Light and variable wind. Winds could gust as high as 18 mph. Chance of precipitation is 90%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 55. Southeast wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 80. Calm wind becoming east around 6 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 73. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 53.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 76.
Sunday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Keystone SD
 43.98°N 103.47°W (Elev. 4800 ft)
Last Update:
8:02 am MDT Aug 12, 2026
Forecast Valid:
8am MDT Aug 12, 2026-6pm MDT Aug 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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