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

74°F

23°C

Humidity 14%
Wind Speed SW 3 mph
Barometer 30.00 in (1009.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 10 Sep 6:53 pm MDT
Extended Forecast for

6 Miles NNW Keystone SD

  • Tonight

    Tonight: Partly cloudy, with a low around 61. West wind 3 to 6 mph. Winds could gust as high as 18 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 83. West wind 8 to 11 mph, with gusts as high as 31 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 28 mph.

    Low: 44 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 47. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 25 mph.

    Low: 47 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly before noon. Partly sunny, with a high near 70. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 30 mph.

    High: 70 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. West wind 3 to 6 mph. Winds could gust as high as 18 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 83. West wind 8 to 11 mph, with gusts as high as 31 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 28 mph.
Saturday
Mostly sunny, with a high near 70. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 47. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 25 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before noon. Partly sunny, with a high near 70. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 30 mph.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 64.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 44.
Wednesday
A slight chance of showers. Partly sunny, with a high near 71.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 72.
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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:
6:56 pm MDT Sep 10, 2026
Forecast Valid:
7pm MDT Sep 10, 2026-6pm MDT Sep 17, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation