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.

Thunderstorm

79°F

26°C

Humidity 67%
Wind Speed SE 10 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 8 Aug 5:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: A chance of rain and thunderstorms before 1am, then a chance of rain after 3am. Partly cloudy, with a low around 69. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 89. Southeast wind around 5 mph becoming west northwest in the morning.

    High: 89 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 69. East northeast wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 87. East wind 5 to 10 mph.

    High: 87 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. East southeast wind around 5 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. East northeast wind around 5 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
A chance of rain and thunderstorms before 1am, then a chance of rain after 3am. Partly cloudy, with a low around 69. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 89. Southeast wind around 5 mph becoming west northwest in the morning.
Sunday Night
Mostly cloudy, with a low around 69. East northeast wind around 5 mph.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 87. East wind 5 to 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. East southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 87. East northeast wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
Mostly cloudy, with a high near 73.
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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:
5:48 pm CDT Aug 8, 2026
Forecast Valid:
6pm CDT Aug 8, 2026-6pm CDT Aug 15, 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