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

90°F

32°C

Humidity 75%
Wind Speed S 6 mph
Barometer 29.82 in (1008.9 mb)
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 26 Jul 1:52 pm CDT
Extended Forecast for

2 Miles NNE Sioux Gateway Airport IA

Heat Advisory July 27, 01:00pm until July 27, 08:00pm
Extreme Heat Warning July 26, 02:19pm until July 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 02:19pm until July 26, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly clear, with a low around 78. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Chance
    T-storms

  • Monday

    Monday: Patchy smoke between 10am and 2pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 100. North northeast wind 5 to 10 mph.

    High: 96 °F

    Patchy Smoke

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72. North northeast wind around 5 mph becoming calm after midnight.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 90. Calm wind becoming east around 5 mph.

    High: 90 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. Southeast wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 111. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly clear, with a low around 78. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Patchy smoke between 10am and 2pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 100. North northeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 72. North northeast wind around 5 mph becoming calm after midnight.
Tuesday
Partly sunny, with a high near 90. Calm wind becoming east around 5 mph.
Tuesday Night
Partly cloudy, with a low around 69. Southeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 70%.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly 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:
2 Miles NNE Sioux Gateway Airport IA
 42.43°N 96.35°W (Elev. 1230 ft)
Last Update:
1:32 pm CDT Jul 26, 2026
Forecast Valid:
2pm CDT Jul 26, 2026-6pm CDT Aug 1, 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