Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

A Few Clouds

72°F

22°C

Humidity 50%
Wind Speed E 8 mph
Barometer 30.14 in (1014.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Jul 12:53 pm MDT
Extended Forecast for

5 Miles SSE Mount Rushmore SD

Severe T-storm Watch until July 3, 08:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until July 3, 08:00pm

    NOW until 8:00pm Fri

    Severe T-storm Watch

  • This Afternoon

    High: 79 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 10pm. Some of the storms could be severe.  Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North wind 5 to 7 mph becoming calm  after midnight. Winds could gust as high as 21 mph.

    Low: 58 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Independence Day

    Independence Day: Showers and thunderstorms likely, mainly between noon and 3pm.  Increasing clouds, with a high near 80. Calm wind becoming east 5 to 7 mph in the morning. Winds could gust as high as 17 mph.  Chance of precipitation is 60%.

    High: 80 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 59. East wind around 6 mph becoming light and variable. Winds could gust as high as 16 mph.

    Low: 59 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 88. West wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 65. Southeast wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 4pm. Some of the storms could be severe. Mostly sunny, with a high near 79. East wind around 7 mph becoming north. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Tonight
A 30 percent chance of showers and thunderstorms before 10pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Independence Day
Showers and thunderstorms likely, mainly between noon and 3pm. Increasing clouds, with a high near 80. Calm wind becoming east 5 to 7 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 59. East wind around 6 mph becoming light and variable. Winds could gust as high as 16 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 88. West wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65. Southeast wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 22 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Monday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 84.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Mount Rushmore SD
 43.81°N 103.4°W (Elev. 4977 ft)
12:33 pm MDT Jul 3, 2026
1pm MDT Jul 3, 2026-6pm MDT Jul 9, 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