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.

Fair

-8°F

-22°C

Humidity 86%
Wind Speed E 5 mph
Barometer 30.39 in (1032.1 mb)
Dewpoint -11°F (-24°C)
Visibility 10.00 mi
Wind Chill-20°F (-29°C)
Last update 4 Dec 5:52 am CST
Extended Forecast for

Sioux City IA

  • Today

    Today: Mostly sunny, with a high near 21. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 25 mph.

    High: 21 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 18. South wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 18 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 34. South wind around 5 mph becoming west northwest in the afternoon.

    High: 34 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16. West northwest wind around 5 mph becoming calm in the evening.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow likely, mainly after noon. Cloudy, with a high near 26. East wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    High: 26 °F

    Chance Snow
    then Snow
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around -2. North northeast wind 5 to 10 mph. New snow accumulation of around an inch possible.

    Low: -2 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 9.

    High: 9 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 21. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 25 mph.
Tonight
Increasing clouds, with a low around 18. South wind 5 to 10 mph, with gusts as high as 25 mph.
Friday
Mostly cloudy, with a high near 34. South wind around 5 mph becoming west northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 16. West northwest wind around 5 mph becoming calm in the evening.
Saturday
Snow likely, mainly after noon. Cloudy, with a high near 26. East wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.
Saturday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around -2. North northeast wind 5 to 10 mph. New snow accumulation of around an inch possible.
Sunday
Partly sunny, with a high near 9.
Sunday Night
Mostly cloudy, with a low around 2.
Monday
Partly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 25.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
6:33 am CST Dec 4, 2025
Forecast Valid:
6am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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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