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.

Overcast

61°F

16°C

Humidity 78%
Wind Speed E 9 mph
Barometer 30.26 in (1024.7 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Sep 2:52 pm CDT
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 62. East wind around 10 mph.

    High: 62 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 53. East southeast wind around 5 mph.

    Low: 53 °F

    Cloudy

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 65. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 4am. Increasing clouds, with a low around 55. Southeast wind around 10 mph. Chance of precipitation is 50%.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 64. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely, mainly after 1am. Cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers before 1pm. Cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Cloudy, with a high near 62. East wind around 10 mph.
Tonight
Cloudy, with a low around 53. East southeast wind around 5 mph.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 65. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers, with thunderstorms also possible after 4am. Increasing clouds, with a low around 55. Southeast wind around 10 mph. Chance of precipitation is 50%.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 64. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely, mainly after 1am. Cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 66. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers before 1pm. Cloudy, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 61.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
2:41 pm CDT Sep 22, 2026
Forecast Valid:
3pm CDT Sep 22, 2026-6pm CDT Sep 28, 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