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.

Fair

55°F

13°C

Humidity 83%
Wind Speed Calm
Barometer 30.00 in (1015.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 19 Jun 6:52 am CDT
Extended Forecast for

Sioux City IA

  • Juneteenth

    Juneteenth: A slight chance of showers between noon and 2pm. Partly sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, then showers and possibly a thunderstorm after 10pm. Low around 58. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

Juneteenth
A slight chance of showers between noon and 2pm. Partly sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Showers likely, then showers and possibly a thunderstorm after 10pm. Low around 58. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Sunday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.48°N 96.41°W (Elev. 1093 ft)
Last Update:
7:13 am CDT Jun 19, 2026
Forecast Valid:
7am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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