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

66°F

19°C

Humidity 70%
Wind Speed E 6 mph
Barometer 30.32 in (1021.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 1:53 pm MDT
Extended Forecast for

6 Miles NNW Keystone SD

  • This Afternoon

    This Afternoon: Showers and thunderstorms. High near 72. Calm wind. Chance of precipitation is 80%.

    High: 72 °F

    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Calm wind becoming southeast around 5 mph. Winds could gust as high as 16 mph.

    High: 76 °F

    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 55. Light and variable wind.

    Low: 55 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 81. Light and variable wind. Winds could gust as high as 16 mph. Chance of precipitation is 60%.

    High: 81 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Calm wind. Chance of precipitation is 40%.

    Low: 55 °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 78. Chance of precipitation is 60%.

    High: 78 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Showers and thunderstorms. High near 72. Calm wind. Chance of precipitation is 80%.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 53. Calm wind.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Calm wind becoming southeast around 5 mph. Winds could gust as high as 16 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55. Light and variable wind.
Monday
Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 81. Light and variable wind. Winds could gust as high as 16 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Calm wind. Chance of precipitation is 40%.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.
Wednesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Keystone SD
 43.98°N 103.47°W (Elev. 4800 ft)
Last Update:
1:01 pm MDT Aug 15, 2026
Forecast Valid:
2pm 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