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

78°F

26°C

Humidity 28%
Wind Speed NA
Barometer 29.92 in (1013.0 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Mar 2:52 pm CDT
Extended Forecast for

Sioux City IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. West northwest wind around 5 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. South wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 56 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. North wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

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

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 88. South wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 44. South wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.
Sunday
Mostly sunny, with a high near 56. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 29. North wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 64. 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:
1:48 pm CDT Mar 20, 2026
Forecast Valid:
2pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation