National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

78°F

26°C

Humidity 26%
Wind Speed SW 7 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Mar 3:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Partly cloudy, with a low around 43. South southwest wind around 5 mph becoming west northwest after midnight.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 79. West northwest wind around 5 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. Northwest wind around 5 mph becoming south southeast in the evening.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. South southwest wind 5 to 10 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46. South wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 60 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. South southwest wind around 5 mph becoming west northwest after midnight.
Friday
Sunny, with a high near 79. West northwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 44. Northwest wind around 5 mph becoming south southeast in the evening.
Saturday
Sunny, with a high near 88. South southwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 46. South wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.
Sunday
Partly sunny, with a high near 60. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 58. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
2:07 pm CDT Mar 19, 2026
Forecast Valid:
4pm CDT Mar 19, 2026-6pm CDT Mar 26, 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