National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Light Snow

13°F

-11°C

Humidity 84%
Wind Speed SE 13 mph
Barometer 30.29 in (1028.0 mb)
Dewpoint 9°F (-13°C)
Visibility 8.00 mi
Wind Chill-2°F (-19°C)
Last update 7 Dec 8:52 pm CST
Extended Forecast for

Jefferson SD

  • Tonight

    Tonight: A 20 percent chance of snow before 11pm. Cloudy, with a low around 14. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 32. South southeast wind around 10 mph.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a steady temperature around 28. South wind around 5 mph becoming west in the evening.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 43 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Windy, with a west northwest wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph.

    Low: 22 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 26. Blustery, with a northwest wind 15 to 25 mph decreasing to 5 to 15 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 26 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 23.

    High: 23 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow before 11pm. Cloudy, with a low around 14. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 32. South southeast wind around 10 mph.
Monday Night
Mostly cloudy, with a steady temperature around 28. South wind around 5 mph becoming west in the evening.
Tuesday
Mostly cloudy, with a high near 43. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 22. Windy, with a west northwest wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph.
Wednesday
Mostly cloudy, with a high near 26. Blustery, with a northwest wind 15 to 25 mph decreasing to 5 to 15 mph in the afternoon. Winds could gust as high as 40 mph.
Wednesday Night
A 50 percent chance of snow. Cloudy, with a low around 14.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 23.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Partly sunny, with a high near 10.
Friday Night
Mostly cloudy, with a low around -6.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 8.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Partly sunny, with a high near 17.
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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:
9:13 pm CST Dec 7, 2025
Forecast Valid:
9pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation