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

50°F

10°C

Humidity 83%
Wind Speed Calm
Barometer 29.74 in (1007.2 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Apr 11:52 pm 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

  • Overnight

    Overnight: Mostly clear, with a low around 45. Calm wind becoming south around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: 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. Partly sunny, with a high near 68. Breezy, with a south wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 35 mph.

    High: 68 °F

    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 31 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 52. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 52 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 45. Calm wind becoming south around 5 mph.
Thursday
Sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
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. Partly sunny, with a high near 68. Breezy, with a south wind 15 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 31. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday
Sunny, with a high near 52. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Mostly sunny, with a high near 76.
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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:
10:38 pm CDT Apr 15, 2026
Forecast Valid:
12am CDT Apr 16, 2026-6pm CDT Apr 22, 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