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.

Fair

-5°F

-21°C

Humidity 56%
Wind Speed N 20 mph
Barometer 30.48 in (1035.9 mb)
Dewpoint -17°F (-27°C)
Visibility 10.00 mi
Wind Chill-29°F (-34°C)
Last update 22 Jan 7:56 pm CST
Extended Forecast for

Hartford SD

Extreme Cold Warning January 23, 12:00am until January 23, 09:00am
Click here for hazard details and duration
Extreme Cold Warning

  • Tonight

    Tonight: Mostly cloudy, with a low around -18. Wind chill values as low as -37. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: -18 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near -5. Wind chill values as low as -36. North northwest wind 5 to 10 mph.

    High: -5 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow. Cloudy, with a low around -8. Wind chill values as low as -18. North wind around 5 mph becoming calm.

    Low: -8 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 5. Wind chill values as low as -20. Southeast wind 5 to 10 mph.

    High: 5 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -7. Southeast wind around 5 mph.

    Low: -7 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 6. East northeast wind 5 to 10 mph becoming north northwest in the afternoon.

    High: 6 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -12.

    Low: -12 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 20.

    High: 20 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around -18. Wind chill values as low as -37. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Partly sunny and cold, with a high near -5. Wind chill values as low as -36. North northwest wind 5 to 10 mph.
Friday Night
A 20 percent chance of snow. Cloudy, with a low around -8. Wind chill values as low as -18. North wind around 5 mph becoming calm.
Saturday
Partly sunny, with a high near 5. Wind chill values as low as -20. Southeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around -7. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 6. East northeast wind 5 to 10 mph becoming north northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around -12.
Monday
Mostly sunny, with a high near 20.
Monday Night
Mostly clear, with a low around 1.
Tuesday
Mostly sunny, with a high near 17.
Tuesday Night
Mostly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 14.
Wednesday Night
Mostly cloudy, with a low around -5.
Thursday
Partly sunny, with a high near 9.
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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:
8:48 pm CST Jan 22, 2026
Forecast Valid:
8pm CST Jan 22, 2026-6pm CST Jan 29, 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