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.

Mostly Cloudy

85°F

29°C

Humidity 53%
Wind Speed S 10 mph
Barometer 29.78 in (1007.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Aug 12:56 pm CDT
Extended Forecast for

Marion SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 93. West southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 71. West wind around 5 mph becoming east after midnight.

    Low: 71 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 95. East wind 5 to 10 mph becoming southwest in the afternoon.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming west northwest after midnight.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 89. North northwest wind 5 to 10 mph becoming southeast in the afternoon.

    High: 89 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 68. South southwest wind around 5 mph becoming northeast in the evening.

    Low: 68 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 87.

    High: 87 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. West southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 71. West wind around 5 mph becoming east after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 95. East wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming west northwest after midnight.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 89. North northwest wind 5 to 10 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 68. South southwest wind around 5 mph becoming northeast in the evening.
Tuesday
Mostly cloudy, with a high near 87.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.
Thursday
Partly sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 66.
Friday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marion SD
 43.42°N 97.26°W (Elev. 1453 ft)
Last Update:
1:33 pm CDT Aug 29, 2026
Forecast Valid:
1pm CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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