Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

61°F

16°C

Humidity 81%
Wind Speed NE 10 mph
Barometer 30.07 in (1012.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Jul 6:53 pm MDT
Extended Forecast for

5 Miles SE Custer County Airport SD

  • Tonight

    Tonight: Drizzle and possibly a thunderstorm.  Areas of fog.  Otherwise, cloudy, with a low around 48. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 48 °F

    T-storms and
    Areas Fog

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm.  Areas of smoke before 9am. Areas of fog.  Otherwise, cloudy, with a high near 52. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    High: 52 °F

    Showers
    Likely and
    Areas Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Areas of fog before midnight.  Otherwise, cloudy, with a low around 43. Northeast wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers and
    Areas Fog

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 70. Southeast wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 70 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 56. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 75. North wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Drizzle and possibly a thunderstorm. Areas of fog. Otherwise, cloudy, with a low around 48. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Areas of smoke before 9am. Areas of fog. Otherwise, cloudy, with a high near 52. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms. Areas of fog before midnight. Otherwise, cloudy, with a low around 43. Northeast wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 70. Southeast wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 75. North wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 59.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 57.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Custer County Airport SD
 43.67°N 103.56°W (Elev. 5623 ft)
7:09 pm MDT Jul 15, 2025
7pm MDT Jul 15, 2025-6pm MDT Jul 22, 2025
 
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Additional Resources

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