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

79°F

26°C

Humidity 54%
Wind Speed NW 6 mph
Barometer 29.84 in (1009.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Jul 8:56 pm CDT
Extended Forecast for

Harrisburg SD

  • Tonight

    Tonight: Patchy smoke before 11pm. Partly cloudy, with a low around 66. North northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Patchy Smoke
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 82. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming calm.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. South southeast wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke before 11pm. Partly cloudy, with a low around 66. North northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 82. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 58. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming calm.
Wednesday Night
Partly cloudy, with a low around 60. South southeast wind around 5 mph.
Thursday
Partly sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62.
Friday
Mostly cloudy, with a high near 79.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
Mostly clear, with a low around 71.
Monday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg SD
 43.43°N 96.7°W (Elev. 1421 ft)
Last Update:
7:33 pm CDT Jul 20, 2026
Forecast Valid:
9pm CDT Jul 20, 2026-6pm CDT Jul 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation