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

-7°F

-22°C

Humidity 82%
Wind Speed E 7 mph
Barometer 30.61 in (1039.6 mb)
Dewpoint -11°F (-24°C)
Visibility 10.00 mi
Wind Chill-22°F (-30°C)
Last update 31 Jan 7:52 am CST
Extended Forecast for

Sioux City IA

  • Today

    Today: A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 23. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 23 °F

    Sunny then
    Slight Chance
    Snow

  • Tonight

    Tonight: Snow and freezing rain likely, mainly before 4am. Mostly cloudy, with a low around 16. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Wintry Mix
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 41. South wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36. Calm wind becoming east southeast around 5 mph.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19. East northeast wind around 5 mph.

    Low: 19 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 23. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Snow and freezing rain likely, mainly before 4am. Mostly cloudy, with a low around 16. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Sunday
Partly sunny, with a high near 41. South wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 36. Calm wind becoming east southeast around 5 mph.
Monday Night
Mostly cloudy, with a low around 19. East northeast wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 40.
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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:
7:23 am CST Jan 31, 2026
Forecast Valid:
8am CST Jan 31, 2026-6pm CST Feb 6, 2026
 
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