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 93%
Wind Speed E 10 mph
Barometer 29.76 in (1007.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 16 Apr 6:52 am CDT
Extended Forecast for

Sioux City IA

Red Flag Warning April 16, 12:00pm until April 16, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Sunny, with a high near 85. Southeast wind 10 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 50. South southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Partly sunny, with a steady temperature around 56. Breezy, with a south southwest wind 10 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 35 mph.

    High: 56 °F

    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 30 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Southeast wind 10 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Increasing clouds, with a low around 50. South southeast wind around 15 mph, with gusts as high as 25 mph.
Friday
A 20 percent chance of showers before 1pm. Partly sunny, with a steady temperature around 56. Breezy, with a south southwest wind 10 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 35 mph.
Friday Night
Partly cloudy, with a low around 30. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday
Sunny, with a high near 53. Northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 30. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
6:33 am CDT Apr 16, 2026
Forecast Valid:
7am CDT Apr 16, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation