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

18°F

-8°C

Humidity 52%
Wind Speed NW 18 mph
Barometer 30.48 in (1034.3 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 21 Feb 9:52 pm CST
Extended Forecast for

Sergeant Bluff IA

  • Tonight

    Tonight: Mostly clear, with a low around 8. North northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 26. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 26 °F

    Sunny then
    Sunny and
    Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 2. North northwest wind 10 to 15 mph becoming light north after midnight.

    Low: 2 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 25. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 25 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14. South wind around 10 mph.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after noon. Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain before midnight, then a slight chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Rain then
    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 8. North northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 26. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 2. North northwest wind 10 to 15 mph becoming light north after midnight.
Monday
Sunny, with a high near 25. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 14. South wind around 10 mph.
Tuesday
Mostly cloudy, with a high near 56. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 48.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 30.
Friday
Mostly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sergeant Bluff IA
 42.39°N 96.35°W (Elev. 1089 ft)
Last Update:
9:53 pm CST Feb 21, 2026
Forecast Valid:
10pm CST Feb 21, 2026-6pm CST Feb 28, 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