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.

Fair

29°F

-2°C

Humidity 39%
Wind Speed NW 18 G 29 mph
Barometer 30.34 in (1029.1 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 21 Feb 2:52 pm CST
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 8. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 26. North northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 26 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3. North northwest wind 5 to 10 mph becoming light north northeast after midnight.

    Low: 3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 26. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16. South wind 5 to 10 mph.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after noon. Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 8. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 26. North northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 3. North northwest wind 5 to 10 mph becoming light north northeast after midnight.
Monday
Sunny, with a high near 26. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 16. South wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 48.
Wednesday Night
A slight chance of rain and snow before midnight, then a slight chance of rain. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 30.
Friday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
2:53 pm CST Feb 21, 2026
Forecast Valid:
3pm CST Feb 21, 2026-6pm CST Feb 27, 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