Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

69°F

21°C

Humidity 36%
Wind Speed NE 7 mph
Barometer 30.02 in (1009.7 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 1 Jul 8:53 pm MDT
Extended Forecast for

5 Miles WSW Custer County Airport SD

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Calm wind becoming northeast around 5 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon.  Widespread haze. Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 20 mph.

    High: 84 °F

    Haze then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Widespread haze before midnight. Partly cloudy, with a low around 60. Southeast wind around 6 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 60 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after noon.  Widespread haze before noon. Partly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 81 °F

    Haze then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 57. East wind around 5 mph becoming calm  in the evening. Winds could gust as high as 16 mph.

    Low: 57 °F

    Chance
    T-storms then
    Partly Cloudy

  • Independence Day

    Independence Day: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. Calm wind becoming northeast around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Widespread haze. Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Widespread haze before midnight. Partly cloudy, with a low around 60. Southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Friday
A 40 percent chance of showers and thunderstorms after noon. Widespread haze before noon. Partly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Independence Day
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 17 mph.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 62.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Custer County Airport SD
 43.69°N 103.71°W (Elev. 5600 ft)
9:42 pm MDT Jul 1, 2026
9pm MDT Jul 1, 2026-6pm MDT Jul 8, 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