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.

A Few Clouds

80°F

27°C

Humidity 60%
Wind Speed Calm
Barometer 29.99 in (1014.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 2 Aug 11:52 am CDT
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. South southeast wind around 5 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. South southeast wind around 10 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 66. South southeast wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

    Low: 66 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. North wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. South southeast wind around 5 mph.
Tonight
Mostly clear, with a low around 64. South southeast wind around 10 mph.
Monday
Sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 66. South southeast wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. North wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 62.
Friday
Mostly sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.36°W (Elev. 1293 ft)
Last Update:
11:43 am CDT Aug 2, 2026
Forecast Valid:
12pm CDT Aug 2, 2026-6pm CDT Aug 8, 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