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.

Partly Cloudy

95°F

35°C

Humidity 54%
Wind Speed S 15 G 26 mph
Barometer 29.78 in (1007.1 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index108°F (42°C)
Last update 26 Jul 5:56 pm CDT
Extended Forecast for

Lennox SD

Extreme Heat Warning July 26, 06:18pm until July 26, 09:00pm
Click here for hazard details and duration
...
  •  
    Extreme Heat Warning July 26, 06:18pm until July 26, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Patchy smoke between 8am and 2pm. Mostly sunny, with a high near 94. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Patchy Smoke

  • Monday Night

    Monday Night: Increasing clouds, with a low around 71. North northeast wind 5 to 10 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 89. South southeast wind around 5 mph.

    High: 89 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. South southeast wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 91. South wind 5 to 10 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly clear, with a low around 76. South wind 5 to 10 mph becoming north northeast after midnight.
Monday
Patchy smoke between 8am and 2pm. Mostly sunny, with a high near 94. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 71. North northeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 89. South southeast wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 69. South southeast wind around 5 mph.
Wednesday
Sunny, with a high near 91. South wind 5 to 10 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lennox SD
 43.36°N 96.9°W (Elev. 1348 ft)
Last Update:
3:58 pm CDT Jul 26, 2026
Forecast Valid:
6pm CDT Jul 26, 2026-6pm CDT Aug 2, 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