National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Partly Cloudy

77°F

25°C

Humidity 42%
Wind Speed SE 6 mph
Barometer 30.08 in (1018.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 22 Jun 6:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: A slight chance of showers before 9pm, then a chance of sprinkles between 9pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly between 8pm and midnight. Mostly cloudy, with a low around 59. South southwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 56. Northwest wind 5 to 10 mph becoming light north northwest after midnight.

    Low: 56 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 77. Calm wind becoming northeast around 5 mph.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before 9pm, then a chance of sprinkles between 9pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday
Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly between 8pm and midnight. Mostly cloudy, with a low around 59. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 56. Northwest wind 5 to 10 mph becoming light north northwest after midnight.
Thursday
Partly sunny, with a high near 77. Calm wind becoming northeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 79.
Friday Night
Mostly cloudy, with a low around 62.
Saturday
Mostly cloudy, with a high near 85.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 70.
Monday
Mostly sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
5:48 pm CDT Jun 22, 2026
Forecast Valid:
6pm CDT Jun 22, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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