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

41°F

5°C

Humidity 55%
Wind Speed Calm
Barometer 30.01 in (1017.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 15 Feb 9:52 am CST
Extended Forecast for

Sioux City IA

  • Today

    Today: Sunny, with a high near 66. Light west southwest wind becoming south southwest 5 to 10 mph in the afternoon.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 66. South wind around 5 mph becoming east southeast in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. East southeast wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 70. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 40. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph.

    Low: 40 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after midnight. Partly cloudy, with a low around 26. Chance of precipitation is 20%.

    Low: 26 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 40. Breezy.

    High: 40 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 66. Light west southwest wind becoming south southwest 5 to 10 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 38. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Washington's Birthday
Mostly sunny, with a high near 66. South wind around 5 mph becoming east southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 42. East southeast wind 5 to 10 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 70. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
A 40 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 40. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 53.
Wednesday Night
A slight chance of rain and snow after midnight. Partly cloudy, with a low around 26. Chance of precipitation is 20%.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 40. Breezy.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 17.
Friday
Partly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
9:43 am CST Feb 15, 2026
Forecast Valid:
10am CST Feb 15, 2026-6pm CST Feb 21, 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