Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

90°F

32°C

Humidity 24%
Wind Speed Vrbl 7 mph
Barometer 30.16 in (1012.5 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 25 Jul 10:53 am MDT
Extended Forecast for

3 Miles E Custer State Park SD

Red Flag Warning July 25, 12:00pm until July 26, 12:00am
Click here for hazard details and duration
Red Flag Warning
  • Today

    Today: Scattered showers and thunderstorms, mainly after 3pm. Some of the storms could be severe.  Mostly sunny and hot, with a high near 104. Southwest wind 8 to 10 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%.

    High: 104 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Isolated showers and thunderstorms before midnight. Some of the storms could be severe.  Partly cloudy, with a low around 77. Southwest wind 5 to 8 mph becoming north in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    Low: 77 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Sunny and hot, with a high near 103. West wind 6 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 22 mph.

    High: 103 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after midnight.  Partly cloudy, with a low around 75. Northeast wind 5 to 8 mph becoming light and variable  after midnight. Winds could gust as high as 21 mph.

    Low: 75 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 99. Light and variable wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 99 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 72. East wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Mostly sunny and hot, with a high near 104. Southwest wind 8 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Tonight
Isolated showers and thunderstorms before midnight. Some of the storms could be severe. Partly cloudy, with a low around 77. Southwest wind 5 to 8 mph becoming north in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Sunny and hot, with a high near 103. West wind 6 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 75. Northeast wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 99. Light and variable wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 72. East wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 95.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 70.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96.
Wednesday Night
Showers likely and possibly a thunderstorm before midnight. Partly cloudy, with a low around 69.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Custer State Park SD
 43.72°N 103.36°W (Elev. 3999 ft)
11:17 am MDT Jul 25, 2026
11am MDT Jul 25, 2026-6pm MDT Jul 31, 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