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

25°F

-4°C

Humidity 60%
Wind Speed Calm
Barometer 30.04 in (1019.0 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 20 Jan 9:52 pm CST
Extended Forecast for

Sioux City IA

Extreme Cold Watch January 22, 09:00pm until January 23, 02:00pm
Wind Advisory January 21, 10:00am until January 21, 06:00pm
Click here for hazard details and duration
Extreme Cold Watch
Wind Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 14. Northeast wind 5 to 10 mph becoming west after midnight.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of flurries before 11am, then a slight chance of snow between 11am and 2pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 36. Windy, with a northwest wind 5 to 15 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 20%.

    High: 36 °F

    Slight Chance
    Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 40 mph.

    Low: 5 °F

    Mostly Clear
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 23. West wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 23 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -11. North wind around 10 mph.

    Low: -11 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 0. North wind 5 to 10 mph.

    High: 0 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -8.

    Low: -8 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow before noon. Partly sunny, with a high near 11.

    High: 11 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -5.

    Low: -5 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 14. Northeast wind 5 to 10 mph becoming west after midnight.
Wednesday
A chance of flurries before 11am, then a slight chance of snow between 11am and 2pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 36. Windy, with a northwest wind 5 to 15 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 5. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 40 mph.
Thursday
Partly sunny, with a high near 23. West wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around -11. North wind around 10 mph.
Friday
Partly sunny and cold, with a high near 0. North wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around -8.
Saturday
A 20 percent chance of snow before noon. Partly sunny, with a high near 11.
Saturday Night
Mostly cloudy, with a low around -5.
Sunday
Mostly sunny, with a high near 15.
Sunday Night
Mostly clear, with a low around -3.
Monday
Sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 36.
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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:
9:58 pm CST Jan 20, 2026
Forecast Valid:
10pm CST Jan 20, 2026-6pm CST Jan 27, 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