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.

Overcast

63°F

17°C

Humidity 93%
Wind Speed NW 5 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 61°F (16°C)
Visibility 9.00 mi
Last update 4 Aug 10:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Showers likely, mainly before midnight. Patchy smoke after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 56. Calm wind becoming north around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Patchy smoke before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 77. Calm wind becoming east northeast around 5 mph.

    High: 77 °F

    Patchy Smoke
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light south southeast wind increasing to 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. South wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. South wind around 5 mph becoming west in the afternoon.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly before midnight. Patchy smoke after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 56. Calm wind becoming north around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Patchy smoke before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 77. Calm wind becoming east northeast around 5 mph.
Wednesday Night
Mostly clear, with a low around 56. Calm wind.
Thursday
Sunny, with a high near 81. Light south southeast wind increasing to 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 64. South wind 5 to 10 mph.
Friday
Sunny, with a high near 86. South wind around 5 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Partly sunny, with a high near 83.
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:
9:18 pm CDT Aug 4, 2026
Forecast Valid:
11pm CDT Aug 4, 2026-6pm CDT Aug 11, 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