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.

Partly Cloudy

69°F

21°C

Humidity 55%
Wind Speed Vrbl 6 mph
Barometer 30.08 in (1012.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 1 Sep 2:53 pm MDT
Extended Forecast for

4 Miles SE Keystone SD

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72. East wind around 6 mph, with gusts as high as 18 mph.

    High: 72 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 60. East wind around 6 mph becoming calm. Winds could gust as high as 16 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Southwest wind 6 to 13 mph, with gusts as high as 32 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. Southwest wind 8 to 10 mph, with gusts as high as 28 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 88. Southwest wind 8 to 10 mph, with gusts as high as 25 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. West wind 5 to 7 mph, with gusts as high as 22 mph.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °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

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72. East wind around 6 mph, with gusts as high as 18 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 60. East wind around 6 mph becoming calm. Winds could gust as high as 16 mph.
Wednesday
Sunny, with a high near 88. Southwest wind 6 to 13 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 68. Southwest wind 8 to 10 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 88. Southwest wind 8 to 10 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 66. West wind 5 to 7 mph, with gusts as high as 22 mph.
Friday
Sunny, with a high near 91.
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 chance of showers and thunderstorms. Partly sunny, with a high near 81.
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 82.
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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Keystone SD
 43.85°N 103.37°W (Elev. 4396 ft)
Last Update:
1:36 pm MDT Sep 1, 2026
Forecast Valid:
3pm MDT Sep 1, 2026-6pm MDT Sep 8, 2026
 
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Additional Resources

Radar & Satellite Image

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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