Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

65°F

18°C

Humidity 25%
Wind Speed N 7 mph
Barometer 30.23 in (1015.5 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 7 Aug 1:53 am MDT
Extended Forecast for

6 Miles NNW Keystone SD

  • Overnight

    Overnight: Areas of smoke before 3am. Mostly clear, with a low around 55. Calm wind. Winds could gust as high as 15 mph.

    Low: 55 °F

    Areas Smoke

  • Friday

    Friday: Sunny, with a high near 84. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Southeast wind around 6 mph becoming calm  in the evening. Winds could gust as high as 24 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Widespread smoke after noon. Sunny, with a high near 94. Calm wind becoming east around 5 mph. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny then
    Smoke

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Light and variable wind. Winds could gust as high as 17 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 91. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Areas of smoke before 3am. Mostly clear, with a low around 55. Calm wind. Winds could gust as high as 15 mph.
Friday
Sunny, with a high near 84. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 61. Southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 24 mph.
Saturday
Widespread smoke after noon. Sunny, with a high near 94. Calm wind becoming east around 5 mph. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 60. Light and variable wind. Winds could gust as high as 17 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly clear, with a low around 59.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Tuesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 80.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Keystone SD
 43.98°N 103.47°W (Elev. 4800 ft)
12:27 am MDT Aug 7, 2026
2am MDT Aug 7, 2026-6pm MDT Aug 13, 2026
 
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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