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.

Mostly Cloudy

56°F

13°C

Humidity 49%
Wind Speed S 7 mph
Barometer 30.20 in (1023.2 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 20 May 8:56 pm CDT
Extended Forecast for

Sioux Falls SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southeast wind around 5 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 66. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 45. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 58. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 58 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 45. East southeast wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 68. West northwest wind 5 to 10 mph.

    High: 68 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Southeast wind around 5 mph.
Thursday
Partly sunny, with a high near 66. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers after 3am. Mostly cloudy, with a low around 45. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Showers, with thunderstorms also possible after 1pm. High near 58. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 45. East southeast wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 80%.
Saturday
Mostly cloudy, with a high near 68. West northwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 54.
Memorial Day
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 83.
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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:
8:13 pm CDT May 20, 2026
Forecast Valid:
9pm CDT May 20, 2026-6pm CDT May 27, 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