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

26°F

-3°C

Humidity 84%
Wind Speed Calm
Barometer 30.41 in (1031.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 23 Mar 4:52 am CDT
Extended Forecast for

Sioux City IA

  • Today

    Today: Isolated showers after 4pm. Increasing clouds, with a high near 52. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 52 °F

    Mostly Sunny
    then Isolated
    Showers

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 32. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 64. South southeast wind around 10 mph.

    High: 64 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. South wind 5 to 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind around 5 mph becoming west southwest in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. West northwest wind around 5 mph becoming south southeast in the evening.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 68. Breezy.

    High: 68 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Isolated showers after 4pm. Increasing clouds, with a high near 52. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 32. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Increasing clouds, with a high near 64. South southeast wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 45. South wind 5 to 10 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind around 5 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. West northwest wind around 5 mph becoming south southeast in the evening.
Thursday
Partly sunny, with a high near 68. Breezy.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
5:43 am CDT Mar 23, 2026
Forecast Valid:
5am CDT Mar 23, 2026-6pm CDT Mar 29, 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