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

76°F

24°C

Humidity 72%
Wind Speed SE 10 mph
Barometer 30.13 in (1019.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Aug 10:52 am CDT
Extended Forecast for

Sioux City IA

  • Today

    Today: Mostly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 69. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 91. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 92. South wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 69. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 91. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Increasing clouds, with a low around 74. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 92. South wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 72. South wind around 5 mph.
Monday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Partly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
9:43 am CDT Aug 28, 2026
Forecast Valid:
11am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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