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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

29°F

-2°C

Humidity 85%
Wind Speed E 15 mph
Barometer 29.81 in (1010.5 mb)
Dewpoint 25°F (-4°C)
Visibility 9.00 mi
Wind Chill18°F (-8°C)
Last update 6 Dec 9:52 am CST
Extended Forecast for

Jefferson SD

Winter Weather Advisory until December 6, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 6, 09:00pm

    NOW until 9:00pm Sat

    Winter Weather Advisory

  • Today

    High: 30 °F

    Heavy Snow

  • Tonight

    Tonight: A 40 percent chance of snow before 7pm. Mostly cloudy, with a low around 6. North wind 10 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    Low: 6 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 14. North wind around 5 mph becoming east in the afternoon.

    High: 14 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 9. South southeast wind 5 to 10 mph.

    Low: 9 °F

    Mostly Cloudy

  • Monday

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

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. South southwest wind 5 to 10 mph becoming west in the evening.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. Blustery.

    Low: 17 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Blustery

Detailed Forecast

Today
Snow. The snow could be heavy at times. Some thunder is also possible. High near 30. Southeast wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around 4 inches.
Tonight
A 40 percent chance of snow before 7pm. Mostly cloudy, with a low around 6. North wind 10 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Sunday
Partly sunny, with a high near 14. North wind around 5 mph becoming east in the afternoon.
Sunday Night
Mostly cloudy, with a low around 9. South southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 33. South wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 21. South southwest wind 5 to 10 mph becoming west in the evening.
Tuesday
Mostly cloudy, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 17. Blustery.
Wednesday
Partly sunny, with a high near 27.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 13.
Thursday
Mostly cloudy, with a high near 25.
Thursday Night
Mostly cloudy, with a low around 6.
Friday
Partly sunny, with a high near 15.
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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:
9:23 am CST Dec 6, 2025
Forecast Valid:
10am CST Dec 6, 2025-6pm CST Dec 12, 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