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

34°F

1°C

Humidity 52%
Wind Speed SE 12 mph
Barometer 30.48 in (1033.1 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 28 Mar 8:52 am CDT
Extended Forecast for

Sioux City IA

Red Flag Warning March 28, 10:00am until March 28, 09:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Partly sunny early, then becoming sunny, with a high near 63. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 63 °F

    Becoming
    Sunny and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 38. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 75. South wind around 10 mph.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. East wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 45. South wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Low: 45 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny early, then becoming sunny, with a high near 63. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph.
Tonight
Partly cloudy, with a low around 38. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 75. South wind around 10 mph.
Sunday Night
Mostly clear, with a low around 44. East wind around 5 mph.
Monday
Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 45. South wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Tuesday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 31.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 56. Breezy.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 38.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
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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:
8:54 am CDT Mar 28, 2026
Forecast Valid:
9am CDT Mar 28, 2026-6pm CDT Apr 3, 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