Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

78°F

26°C

Humidity 19%
Wind Speed Vrbl 7 mph
Barometer 29.99 in (1009.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 1 Jul 1:53 pm MDT
Extended Forecast for

Custer State Park SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. East wind 3 to 5 mph. Winds could gust as high as 17 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. East wind around 5 mph becoming calm  in the evening. Winds could gust as high as 16 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Sunny, with a high near 84. Light and variable wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 23 mph.

    High: 84 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 60. Northeast wind around 6 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 60 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after noon. Some of the storms could be severe.  Mostly sunny, with a high near 83. Light and variable wind becoming northeast around 6 mph in the morning. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before midnight. Some of the storms could be severe.  Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm  after midnight. Winds could gust as high as 16 mph.

    Low: 60 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. East wind 3 to 5 mph. Winds could gust as high as 17 mph.
Tonight
Mostly clear, with a low around 61. East wind around 5 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 84. Light and variable wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 23 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Friday
A 40 percent chance of showers and thunderstorms after noon. Some of the storms could be severe. Mostly sunny, with a high near 83. Light and variable wind becoming northeast around 6 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
A 30 percent chance of showers and thunderstorms before midnight. Some of the storms could be severe. Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 16 mph.
Independence Day
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 65.
Monday
Mostly sunny, with a high near 89.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Custer State Park SD
 43.72°N 103.42°W (Elev. 4583 ft)
2:43 pm MDT Jul 1, 2026
2pm MDT Jul 1, 2026-6pm MDT Jul 7, 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