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.

Mostly Cloudy

70°F

21°C

Humidity 59%
Wind Speed Calm
Barometer 30.15 in (1014.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 8 Aug 8:53 am MDT
Extended Forecast for

4 Miles NNE Keystone SD

  • Today

    Today: Widespread smoke, mainly after noon. Mostly sunny, with a high near 94. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 94 °F

    Smoke

  • Tonight

    Tonight: Widespread smoke, mainly before midnight. Mostly clear, with a low around 64. Northeast wind 5 to 9 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Smoke

  • Sunday

    Sunday: Areas of smoke. Partly sunny, then gradually becoming sunny, with a high near 88. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 88 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. Southeast wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 23 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 89. Calm wind becoming southeast 5 to 7 mph in the morning. Winds could gust as high as 24 mph.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 62. Northeast wind 5 to 7 mph becoming calm  after midnight. Winds could gust as high as 23 mph.

    Low: 62 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 85.

    High: 85 °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 60.

    Low: 60 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Widespread smoke, mainly after noon. Mostly sunny, with a high near 94. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.
Tonight
Widespread smoke, mainly before midnight. Mostly clear, with a low around 64. Northeast wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
Areas of smoke. Partly sunny, then gradually becoming sunny, with a high near 88. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 62. Southeast wind 5 to 8 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 89. 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 62. Northeast wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 23 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 60.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 53.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Keystone SD
 43.94°N 103.41°W (Elev. 4774 ft)
8:32 am MDT Aug 8, 2026
9am 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