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

59°F

15°C

Humidity 87%
Wind Speed NE 6 mph
Barometer 30.07 in (1013.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 1 Sep 9:53 pm MDT
Extended Forecast for

5 Miles SSE Keystone SD

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Light and variable wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 15 mph.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Southwest wind 7 to 14 mph, with gusts as high as 32 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. Southwest wind 9 to 11 mph, with gusts as high as 28 mph.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 89. Southwest wind 8 to 11 mph, with gusts as high as 26 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. West wind around 7 mph, with gusts as high as 22 mph.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. West wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 28 mph.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Light and variable wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 15 mph.
Wednesday
Sunny, with a high near 88. Southwest wind 7 to 14 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 67. Southwest wind 9 to 11 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 89. Southwest wind 8 to 11 mph, with gusts as high as 26 mph.
Thursday Night
Mostly clear, with a low around 66. West wind around 7 mph, with gusts as high as 22 mph.
Friday
Sunny, with a high near 92. West wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Mostly clear, with a low around 70.
Saturday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 82.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Labor Day
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Keystone SD
 43.83°N 103.37°W (Elev. 4400 ft)
Last Update:
8:26 pm MDT Sep 1, 2026
Forecast Valid:
10pm MDT Sep 1, 2026-6pm MDT Sep 8, 2026
 
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Additional Resources

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