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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Wheaton Municipal Airport (KETH)

Lat: 45.78°NLon: 96.55°WElev: 1011ft.

Fair

46°F

8°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 30.13 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 28 Aug 7:13 am CDT
Extended Forecast for

White Rock SD

  • Today

    Today: Increasing clouds, with a high near 82. Light southeast wind becoming south southeast 9 to 14 mph in the morning.

    High: 82 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 62. Southeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Partly Cloudy
    then T-storms
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, with a high near 84. Southeast wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    T-storms then
    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. East wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 86. East wind 5 to 9 mph.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. East southeast wind around 8 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 84. West northwest wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West wind 5 to 7 mph becoming south southwest after midnight.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. West wind 3 to 7 mph.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 82. Light southeast wind becoming south southeast 9 to 14 mph in the morning.
Tonight
Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 62. Southeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, with a high near 84. Southeast wind 6 to 9 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. East wind 5 to 7 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 86. East wind 5 to 9 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. East southeast wind around 8 mph becoming west after midnight. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 84. West northwest wind 5 to 9 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 58. West wind 5 to 7 mph becoming south southwest after midnight.
Tuesday
Mostly sunny, with a high near 83. West wind 3 to 7 mph.
Tuesday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 59. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
Thursday
A chance of showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
White Rock SD
 45.91°N 96.59°W (Elev. 984 ft)
Last Update:
7:06 am CDT Aug 28, 2026
Forecast Valid:
7am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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