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

21°F

-6°C

Humidity 78%
Wind Speed N 13 mph
Barometer 29.69 in (1006.2 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 19 Feb 2:52 am CST
Extended Forecast for

Sioux City IA

Winter Weather Advisory February 19, 12:00pm until February 20, 12:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 25. North wind around 10 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. North wind 10 to 15 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow, mainly before midnight. Cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow
    then Slight
    Chance Snow

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 31 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11. Northwest wind around 5 mph.

    Low: 11 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 34. Northwest wind 5 to 10 mph.

    High: 34 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 25. North wind around 10 mph.
Thursday
A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. North wind 10 to 15 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow, mainly before midnight. Cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 11. Northwest wind around 5 mph.
Saturday
Partly sunny, with a high near 34. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 10.
Sunday
Sunny, with a high near 30.
Sunday Night
Mostly clear, with a low around 5.
Monday
Sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 52.
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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:
2:33 am CST Feb 19, 2026
Forecast Valid:
3am CST Feb 19, 2026-6pm CST Feb 25, 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