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

Hazardous Weather Conditions

Current conditions at

Sioux Falls, Foss Field (KFSD)

Lat: 43.58°NLon: 96.75°WElev: 1427ft.

A Few Clouds

78°F

26°C

Humidity 74%
Wind Speed S 12 mph
Barometer 29.68 in (1003.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Jun 8:56 am CDT
Extended Forecast for

Sioux Falls SD

Extreme Heat Warning June 20, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Sunny and hot, with a high near 98. Heat index values as high as 106. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph.

    High: 98 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 77 °F

    Increasing
    Clouds and
    Breezy

  • Saturday

    Saturday: Sunny and hot, with a high near 102. Heat index values as high as 107. South southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 102 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 99 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely after 10pm. Increasing clouds, with a low around 65. West southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 65 °F

    T-storms
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny and hot, with a high near 98. Heat index values as high as 106. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph.
Tonight
Increasing clouds, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Sunny and hot, with a high near 102. Heat index values as high as 107. South southwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 78. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
Sunny and hot, with a high near 99. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday Night
Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely after 10pm. Increasing clouds, with a low around 65. West southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 59.
Tuesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 80%.
Wednesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 78. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux Falls SD
 43.56°N 96.73°W (Elev. 1424 ft)
Last Update:
9:02 am CDT Jun 20, 2025
Forecast Valid:
9am CDT Jun 20, 2025-6pm CDT Jun 26, 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