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

88°F

31°C

Humidity 66%
Wind Speed S 14 mph
Barometer 29.96 in (1013.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 14 Jul 2:52 pm CDT
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. South wind around 10 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. South southeast wind around 10 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after 1am. Increasing clouds, with a low around 66. South southeast wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 70%.

    Low: 66 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North wind 5 to 10 mph.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 61. North wind 5 to 10 mph.

    Low: 61 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. South wind around 10 mph.
Tonight
Mostly clear, with a low around 68. South southeast wind around 10 mph.
Tuesday
Sunny, with a high near 90. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Showers and thunderstorms likely, mainly after 1am. Increasing clouds, with a low around 66. South southeast wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 61. North wind 5 to 10 mph.
Thursday
Mostly cloudy, with a high near 76.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 81.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 85.
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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:
2:45 pm CDT Jul 14, 2025
Forecast Valid:
3pm CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
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