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Winter Storm Moving Through the Region Today

Winter travel impacts expected across the region Saturday. Continue to monitor the latest forecast. Read More >

Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Overcast

17°F

-8°C

Humidity 80%
Wind Speed N 10 mph
Barometer 30.26 in (1026.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 7 Dec 6:52 am CST
Extended Forecast for

Jefferson SD

  • Today

    Today: A chance of flurries between 3pm and 4pm, then a slight chance of snow after 4pm. Mostly cloudy, with a high near 17. North wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 20%.

    High: 17 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 1am. Mostly cloudy, with a low around 13. South southeast wind 5 to 10 mph.

    Low: 13 °F

    Slight Chance
    Snow

  • Monday

    Monday: Partly sunny, with a high near 33. South wind 10 to 15 mph.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. South wind around 5 mph becoming west in the evening.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 43 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 18 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow. Mostly cloudy, with a high near 21.

    High: 21 °F

    Chance Snow

Detailed Forecast

Today
A chance of flurries between 3pm and 4pm, then a slight chance of snow after 4pm. Mostly cloudy, with a high near 17. North wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 20%.
Tonight
A 20 percent chance of snow before 1am. Mostly cloudy, with a low around 13. South southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 33. South wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 23. South wind around 5 mph becoming west in the evening.
Tuesday
Mostly cloudy, with a high near 43. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 18. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
Mostly cloudy, with a high near 26.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 13.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 21.
Thursday Night
Mostly cloudy, with a low around -3.
Friday
Partly sunny, with a high near 7.
Friday Night
Mostly cloudy, with a low around -7.
Saturday
Mostly cloudy, with a high near 9.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jefferson SD
 42.61°N 96.56°W (Elev. 1125 ft)
Last Update:
6:23 am CST Dec 7, 2025
Forecast Valid:
6am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
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