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

79°F

26°C

Humidity 54%
Wind Speed SW 9 G 20 mph
Barometer 30.09 in (1018.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 2:52 pm CDT
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. South wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Calm wind becoming east southeast around 5 mph.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. East wind around 5 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Southeast wind around 5 mph.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers. Mostly cloudy, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers. Mostly cloudy, with a high near 73.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. South southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 56. South wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 81. Calm wind becoming east southeast around 5 mph.
Thursday Night
Partly cloudy, with a low around 59. East wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Southeast wind around 5 mph.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 77.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 73.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58.
Labor Day
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
2:26 pm CDT Aug 27, 2025
Forecast Valid:
3pm CDT Aug 27, 2025-6pm CDT Sep 2, 2025
 
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