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.

Overcast

19°F

-7°C

Humidity 81%
Wind Speed SW 13 mph
Barometer 30.17 in (1023.3 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 1 Feb 1:52 am CST
Extended Forecast for

Sioux City IA

  • Overnight

    Overnight: A chance of snow and freezing rain before 5am, then a slight chance of snow. Mostly cloudy, with a low around 15. South wind 10 to 15 mph. Chance of precipitation is 30%.

    Low: 15 °F

    Chance Wintry
    Mix

  • Sunday

    Sunday: Mostly cloudy, with a high near 40. South wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 40 °F

    Mostly Cloudy

  • 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: Mostly cloudy, with a high near 35. Calm wind becoming east around 5 mph.

    High: 35 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20. Northeast wind around 5 mph becoming calm.

    Low: 20 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 32 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow and freezing rain before 5am, then a slight chance of snow. Mostly cloudy, with a low around 15. South wind 10 to 15 mph. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 40. South wind 5 to 15 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
Mostly cloudy, with a high near 35. Calm wind becoming east around 5 mph.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20. Northeast wind around 5 mph becoming calm.
Tuesday
Mostly cloudy, with a high near 32. Northeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Mostly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 37.
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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:
2:13 am CST Feb 1, 2026
Forecast Valid:
2am CST Feb 1, 2026-6pm CST Feb 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