Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

49°F

9°C

Humidity 55%
Wind Speed E 7 mph
Barometer 30.17 in (1017.2 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 19 Jun 11:53 pm MDT
Extended Forecast for

6 Miles NNW Keystone SD

  • Overnight

    Overnight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 3pm.  Mostly cloudy, with a high near 67. Calm wind becoming southeast 5 to 7 mph in the morning. Winds could gust as high as 25 mph.

    High: 67 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Cloudy, with a low around 50. East wind around 6 mph becoming calm  in the evening. Winds could gust as high as 23 mph.  Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after noon.  Cloudy, with a high near 63. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 45. North wind around 6 mph becoming calm  in the evening. Winds could gust as high as 21 mph.  Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 67. Calm wind becoming southeast around 5 mph. Winds could gust as high as 17 mph.  Chance of precipitation is 80%.

    High: 67 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then a slight chance of showers.  Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after noon.  Sunny, with a high near 70.

    High: 70 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers after midnight.  Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 47. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 67. Calm wind becoming southeast 5 to 7 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 50. East wind around 6 mph becoming calm in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Sunday
Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 63. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 45. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Monday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 67. Calm wind becoming southeast around 5 mph. Winds could gust as high as 17 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 44. Chance of precipitation is 80%.
Tuesday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 70.
Tuesday Night
A slight chance of showers after midnight. Mostly clear, with a low around 44.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 71.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 49.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Keystone SD
 43.98°N 103.47°W (Elev. 4800 ft)
12:17 am MDT Jun 20, 2026
12am MDT Jun 20, 2026-6pm MDT Jun 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database