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.

Overcast

69°F

21°C

Humidity 96%
Wind Speed S 12 mph
Barometer 29.91 in (1012.2 mb)
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 25 Jul 1:56 am CDT
Extended Forecast for

Sioux Falls SD

Heat Advisory July 25, 12:00pm until July 26, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 69. South wind around 10 mph.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 97. Heat index values as high as 102. South southwest wind around 5 mph becoming west in the afternoon.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly between 11pm and 4am. Increasing clouds, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms before 7am. Cloudy, then gradually becoming mostly sunny and hot, with a high near 98. Heat index values as high as 105. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 98 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Sunny and hot, with a high near 97. North northeast wind 5 to 10 mph.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 69. South wind around 10 mph.
Saturday
Mostly sunny and hot, with a high near 97. Heat index values as high as 102. South southwest wind around 5 mph becoming west in the afternoon.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly between 11pm and 4am. Increasing clouds, with a low around 77. South wind 5 to 10 mph.
Sunday
A 10 percent chance of showers and thunderstorms before 7am. Cloudy, then gradually becoming mostly sunny and hot, with a high near 98. Heat index values as high as 105. South wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph.
Monday
Sunny and hot, with a high near 97. North northeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 70.
Friday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux Falls SD
 43.54°N 96.73°W (Elev. 1453 ft)
Last Update:
1:38 am CDT Jul 25, 2026
Forecast Valid:
2am CDT Jul 25, 2026-6pm CDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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