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

67°F

19°C

Humidity 26%
Wind Speed S 20 G 32 mph
Barometer 29.95 in (1014.6 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 1:56 pm CDT
Extended Forecast for

Hartford SD

Red Flag Warning until April 20, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until April 20, 08:00pm

    NOW until 8:00pm Mon

    Red Flag Warning

  • This Afternoon

    High: 73 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 42. South wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. North wind around 10 mph becoming east in the afternoon.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. East southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 88 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 60. Breezy, with a south southeast wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Breezy.
    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers. Partly sunny, with a high near 78. Breezy.

    High: 78 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 73. Breezy, with a south wind 20 to 25 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 42. South wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 80. North wind around 10 mph becoming east in the afternoon.
Tuesday Night
Mostly clear, with a low around 52. East southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 88. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph.
Wednesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 60. Breezy, with a south southeast wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 78. Breezy.
Thursday Night
Partly cloudy, with a low around 39. Breezy.
Friday
Mostly sunny, with a high near 59. Breezy.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hartford SD
 43.62°N 96.94°W (Elev. 1565 ft)
Last Update:
2:03 pm CDT Apr 20, 2026
Forecast Valid:
2pm CDT Apr 20, 2026-6pm CDT Apr 26, 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