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

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Overcast

21°F

-6°C

Humidity 88%
Wind Speed SE 13 mph
Barometer 29.98 in (1016.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 1 Jan 10:52 am CST
Extended Forecast for

Sioux City IA

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 32. South southeast wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 32 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of flurries between 11am and 1pm, then a slight chance of snow after 1pm. Cloudy, with a high near 29. Calm wind becoming east around 5 mph. Chance of precipitation is 20%.

    High: 29 °F

    Cloudy then
    Slight Chance
    Snow

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 22. East wind around 5 mph becoming calm.

    Low: 22 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 40. Calm wind becoming south southwest around 5 mph.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

New Year's Day
Mostly cloudy, with a high near 32. South southeast wind 5 to 10 mph becoming light and variable in the afternoon.
Tonight
Mostly cloudy, with a low around 21. Calm wind.
Friday
A chance of flurries between 11am and 1pm, then a slight chance of snow after 1pm. Cloudy, with a high near 29. Calm wind becoming east around 5 mph. Chance of precipitation is 20%.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 22. East wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 40. Calm wind becoming south southwest around 5 mph.
Saturday Night
Partly cloudy, with a low around 23. Calm wind becoming east southeast around 5 mph after midnight.
Sunday
Partly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 48.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
10:48 am CST Jan 1, 2026
Forecast Valid:
11am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
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