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.

A Few Clouds

21°F

-6°C

Humidity 85%
Wind Speed Calm
Barometer 30.23 in (1025.7 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 30 Dec 9:52 am CST
Extended Forecast for

Sioux City IA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 42. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Northwest wind 5 to 10 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 40. West northwest wind around 5 mph becoming north northeast in the afternoon.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 16. North northeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 16 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 32. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 32 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20. South southeast wind around 5 mph becoming north northeast after midnight.

    Low: 20 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 42. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 27. Northwest wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 40. West northwest wind around 5 mph becoming north northeast in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 16. North northeast wind 5 to 10 mph becoming light and variable after midnight.
New Year's Day
Partly sunny, with a high near 32. Light and variable wind becoming south 5 to 10 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 20. South southeast wind around 5 mph becoming north northeast after midnight.
Friday
Mostly cloudy, with a high near 31.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 43.
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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:
9:09 am CST Dec 30, 2025
Forecast Valid:
10am CST Dec 30, 2025-6pm CST Jan 5, 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