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 58%
Wind Speed E 7 mph
Barometer 30.01 in (1015.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Jul 8:56 pm CDT
Extended Forecast for

Sioux Falls SD

  • Tonight

    Tonight: Increasing clouds, with a low around 66. East southeast wind around 5 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 94. South southeast wind 5 to 10 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Mostly sunny and hot, with a high near 100. South southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 100 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Clear, with a low around 70. North northwest wind around 10 mph.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 66. East southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 94. South southeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Mostly sunny and hot, with a high near 100. South southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Clear, with a low around 70. North northwest wind around 10 mph.
Tuesday
Sunny, with a high near 86. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Partly sunny, with a high near 86.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 93.
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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:
9:44 pm CDT Jul 18, 2026
Forecast Valid:
9pm CDT Jul 18, 2026-6pm CDT Jul 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation