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

56°F

13°C

Humidity 55%
Wind Speed W 5 mph
Barometer 30.22 in (1017.0 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 8 Aug 1:53 am MDT
Extended Forecast for

5 Miles NNW Keystone SD

  • Overnight

    Overnight: Areas of smoke. Mostly clear, with a low around 59. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Areas Smoke

  • Saturday

    Saturday: Widespread smoke, mainly after noon. Mostly sunny, with a high near 92. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 92 °F

    Smoke

  • Saturday Night

    Saturday Night: Widespread smoke, mainly before midnight. Mostly clear, with a low around 60. Northeast wind 5 to 9 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 60 °F

    Smoke

  • Sunday

    Sunday: Areas of smoke. Sunny, with a high near 87. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 87 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. Southeast wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 23 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 87. Calm wind becoming southeast 5 to 7 mph in the morning. Winds could gust as high as 24 mph.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 60.

    Low: 60 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly before midnight.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Areas of smoke. Mostly clear, with a low around 59. South wind around 5 mph, with gusts as high as 15 mph.
Saturday
Widespread smoke, mainly after noon. Mostly sunny, with a high near 92. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Widespread smoke, mainly before midnight. Mostly clear, with a low around 60. Northeast wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
Areas of smoke. Sunny, with a high near 87. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 59. Southeast wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 23 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming southeast 5 to 7 mph in the morning. Winds could gust as high as 24 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Tuesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.
Tuesday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 57.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 50.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Keystone SD
 43.96°N 103.44°W (Elev. 5000 ft)
12:31 am MDT Aug 8, 2026
2am MDT Aug 8, 2026-6pm MDT Aug 14, 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