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

58°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in (1016.4 mb)
Dewpoint 58°F (14°C)
Visibility 0.25 mi
Last update 20 Aug 2:52 am CDT
Extended Forecast for

5 Miles NNE Sioux City IA

Dense Fog Advisory until August 20, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until August 20, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 58 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Areas of dense fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 82. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 82 °F

    Areas Dense
    Fog then
    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly clear, with a low around 62. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Calm wind becoming north northwest around 5 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming northeast around 5 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly clear, with a low around 58. Calm wind.
Thursday
Areas of dense fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 82. Light south wind becoming south southwest 5 to 10 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly clear, with a low around 62. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
Sunny, with a high near 84. Calm wind becoming north northwest around 5 mph.
Friday Night
Mostly clear, with a low around 60. Calm wind.
Saturday
Sunny, with a high near 80. Calm wind becoming northeast around 5 mph.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 77.
Sunday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61.
Monday
Partly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Partly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Sioux City IA
 42.57°N 96.33°W (Elev. 1119 ft)
Last Update:
2:39 am CDT Aug 20, 2026
Forecast Valid:
3am CDT Aug 20, 2026-6pm CDT Aug 26, 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