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.

Fair

80°F

27°C

Humidity 54%
Wind Speed N 10 mph
Barometer 29.98 in (1014.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 1 Aug 7:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 58. North northeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

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

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °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, with gusts as high as 25 mph.

    Low: 66 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 77. North northeast wind 5 to 10 mph. Chance of precipitation is 80%.

    High: 77 °F

    Showers

  • 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 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 58. North northeast wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 64. Southeast wind 5 to 10 mph.
Monday
Sunny, with a high near 87. 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, with gusts as high as 25 mph.
Tuesday
Showers and possibly a thunderstorm. High near 77. North northeast wind 5 to 10 mph. Chance of precipitation is 80%.
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 58. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 67.
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 96.39°W (Elev. 1099 ft)
Last Update:
5:38 pm CDT Aug 1, 2026
Forecast Valid:
8pm CDT Aug 1, 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