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.

A Few Clouds

53°F

12°C

Humidity 64%
Wind Speed Calm
Barometer 29.89 in (1012.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 14 Feb 6:52 pm CST
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Mostly clear, with a low around 30. Calm wind becoming northwest around 5 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 64. South wind around 5 mph.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. East southeast wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after midnight. Partly cloudy, with a low around 27. Chance of precipitation is 20%.

    Low: 27 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Calm wind becoming northwest around 5 mph.
Sunday
Sunny, with a high near 66. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 38. South wind 5 to 15 mph, with gusts as high as 20 mph.
Washington's Birthday
Mostly sunny, with a high near 64. South wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 42. East southeast wind 5 to 10 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 40 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 57.
Wednesday Night
A slight chance of rain and snow after midnight. Partly cloudy, with a low around 27. Chance of precipitation is 20%.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 41.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 37.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
6:28 pm CST Feb 14, 2026
Forecast Valid:
7pm CST Feb 14, 2026-6pm CST Feb 21, 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