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.

Mostly Cloudy with Haze

10°F

-12°C

Humidity 58%
Wind Speed N 14 mph
Barometer 30.62 in (1039.4 mb)
Dewpoint -2°F (-19°C)
Visibility 6.00 mi
Wind Chill-6°F (-21°C)
Last update 30 Jan 11:52 am CST
Extended Forecast for

3 Miles SW Jefferson SD

  • This Afternoon

    This Afternoon: A 40 percent chance of snow, mainly before 3pm. Cloudy early, then gradual clearing, with a high near 12. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Total daytime snow accumulation of less than a half inch possible.

    High: 12 °F

    Chance Snow

  • Tonight

    Tonight: Mostly clear, with a low around -8. North wind 5 to 10 mph becoming light and variable in the evening.

    Low: -8 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after 5pm. Increasing clouds, with a high near 22. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 22 °F

    Mostly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow, possibly mixing with freezing rain after midnight, then gradually ending. Low around 16. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Snow then
    Chance Wintry
    Mix

  • Sunday

    Sunday: Partly sunny, with a high near 40. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 40 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of snow, mainly before 3pm. Cloudy early, then gradual clearing, with a high near 12. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around -8. North wind 5 to 10 mph becoming light and variable in the evening.
Saturday
A 30 percent chance of snow after 5pm. Increasing clouds, with a high near 22. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
Snow, possibly mixing with freezing rain after midnight, then gradually ending. Low around 16. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Sunday
Partly sunny, with a high near 40. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming northeast after midnight.
Monday
Mostly cloudy, with a high near 37.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Jefferson SD
 42.58°N 96.59°W (Elev. 1125 ft)
Last Update:
12:18 pm CST Jan 30, 2026
Forecast Valid:
12pm CST Jan 30, 2026-6pm CST Feb 5, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation