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.

Fog/Mist

40°F

4°C

Humidity 100%
Wind Speed NW 17 mph
Barometer 30.05 in (1018.4 mb)
Dewpoint 40°F (4°C)
Visibility 1.00 mi
Wind Chill31°F (-1°C)
Last update 20 Nov 7:52 am CST
Extended Forecast for

Sioux City IA

Dense Fog Advisory November 20, 08:51am until November 20, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 20, 08:51am until November 20, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Today

    High: 51 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. North northeast wind around 5 mph becoming calm.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 48. Northeast wind around 5 mph.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. Calm wind becoming south around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59. West southwest wind 5 to 10 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. West southwest wind around 5 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Today
Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 51. North wind around 5 mph.
Tonight
Mostly cloudy, with a low around 35. North northeast wind around 5 mph becoming calm.
Friday
Mostly cloudy, with a high near 48. Northeast wind around 5 mph.
Friday Night
Partly cloudy, with a low around 32. Calm wind becoming south around 5 mph.
Saturday
Sunny, with a high near 59. West southwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 36. West southwest wind around 5 mph.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 36.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 50.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
8:43 am CST Nov 20, 2025
Forecast Valid:
8am CST Nov 20, 2025-6pm CST Nov 26, 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