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.

Partly Cloudy

71°F

22°C

Humidity 87%
Wind Speed W 10 mph
Barometer 29.77 in (1007.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 30 Jun 1:52 am CDT
Extended Forecast for

Sioux City IA

Severe T-storm Watch June 30, 02:35am until June 30, 04:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch June 30, 02:35am until June 30, 04:00am

    NOW until 4:00am Tue

    Severe T-storm Watch

  • Overnight

    Low: 72 °F

    Heavy Rain

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny and hot, with a high near 95. South wind around 5 mph becoming calm.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly between 3am and 5am. Increasing clouds, with a low around 72. South wind 5 to 10 mph becoming east southeast in the evening.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 3pm, then a chance of rain between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 69. West southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Light south southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 70%.

    Low: 72 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm before 4am, then a chance of rain after 4am. Some of the storms could produce heavy rainfall. Low around 72. South southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Partly sunny, then gradually becoming sunny and hot, with a high near 95. South wind around 5 mph becoming calm.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly between 3am and 5am. Increasing clouds, with a low around 72. South wind 5 to 10 mph becoming east southeast in the evening.
Wednesday
A chance of showers and thunderstorms before 3pm, then a chance of rain between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 69. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Light south southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 70%.
Friday
Mostly sunny, with a high near 94.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Independence Day
Partly sunny, with a high near 92.
Saturday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
1:53 am CDT Jun 30, 2026
Forecast Valid:
2am CDT Jun 30, 2026-6pm CDT Jul 6, 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