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

-5°F

-21°C

Humidity 87%
Wind Speed E 5 mph
Barometer 30.29 in (1028.6 mb)
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Wind Chill-16°F (-27°C)
Last update 25 Jan 3:52 am CST
Extended Forecast for

Sioux City IA

Cold Weather Advisory January 26, 12:00am until January 26, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Overnight

    Overnight: Mostly clear, with a low around -5. Calm wind.

    Low: -5 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of flurries after 4pm. Partly sunny, with a high near 13. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon.

    High: 13 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around -7. North northwest wind 5 to 15 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.

    Low: -7 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 27. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 27 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 9. Southwest wind around 10 mph becoming northwest after midnight.

    Low: 9 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 21. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 21 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around -5. Calm wind.
Sunday
A chance of flurries after 4pm. Partly sunny, with a high near 13. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon.
Sunday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around -7. North northwest wind 5 to 15 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 27. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 9. Southwest wind around 10 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 21. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 5.
Wednesday
Mostly sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Partly sunny, with a high near 25.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Friday
A 20 percent chance of snow. Mostly sunny, with a high near 19.
Friday Night
Partly cloudy, with a low around 2.
Saturday
Mostly sunny, with a high near 23.
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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:
3:18 am CST Jan 25, 2026
Forecast Valid:
3am CST Jan 25, 2026-6pm CST Jan 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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