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

Sioux Falls, Foss Field (KFSD)

Lat: 43.58°NLon: 96.75°WElev: 1427ft.

Partly Cloudy

82°F

28°C

Humidity 46%
Wind Speed SE 9 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 31 Aug 7:56 pm CDT
Extended Forecast for

Sioux Falls SD

  • Tonight

    Tonight: Increasing clouds, with a low around 68. South southwest wind around 5 mph becoming calm.

    Low: 68 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 4am, then a slight chance of showers. Mostly cloudy, with a low around 66. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 89. Northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 69. East wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Sunny, with a high near 91. South southeast wind 5 to 10 mph.

    High: 91 °F

    Sunny

  • Thursday Night

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

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 68. South southwest wind around 5 mph becoming calm.
Tuesday
Mostly cloudy, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Showers and thunderstorms likely before 4am, then a slight chance of showers. Mostly cloudy, with a low around 66. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Sunny, with a high near 89. Northeast wind around 5 mph becoming east southeast in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 69. East wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday
Sunny, with a high near 91. South southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 71.
Friday
Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 73.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Labor Day
Partly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux Falls SD
 43.56°N 96.73°W (Elev. 1424 ft)
Last Update:
5:28 pm CDT Aug 31, 2026
Forecast Valid:
8pm CDT Aug 31, 2026-6pm CDT Sep 7, 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