National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall in the Southern Plains into the Lower Mississippi and Upper Midwest

Heavy thunderstorms will continue to produce areas of excessive rainfall and locally considerable flooding over parts of the southern Plains into the mid-Mississippi River Valley through Saturday. Heavy to excessive rainfall may bring flash and urban flooding, along with isolated riverine flooding across portions of the Upper Midwest, mainly over central Minnesota. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Mostly Cloudy

65°F

18°C

Humidity 76%
Wind Speed NE 12 mph
Barometer 29.99 in (1010.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Jun 5:53 pm MDT
Extended Forecast for

Mount Rushmore SD

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 3am. Widespread haze before midnight. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 57. Calm wind.

    Low: 57 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph.

    High: 73 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm.

    Low: 60 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Calm wind becoming southeast around 5 mph.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Calm wind becoming east around 5 mph.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm.

    Low: 62 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Southwest wind around 5 mph becoming east in the afternoon.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 60.

    Low: 60 °F

    T-storms
    Likely

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 3am. Widespread haze before midnight. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 57. Calm wind.
Friday
Areas of fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph.
Friday Night
A 30 percent chance of showers and thunderstorms before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Calm wind becoming southeast around 5 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Calm wind becoming east around 5 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm.
Monday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Southwest wind around 5 mph becoming east in the afternoon.
Monday Night
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 60.
Tuesday
Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 73.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 57.
Juneteenth
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Rushmore SD
 43.87°N 103.46°W (Elev. 5000 ft)
Last Update:
6:09 pm MDT Jun 12, 2025
Forecast Valid:
6pm MDT Jun 12, 2025-6pm MDT Jun 19, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation