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.

Overcast

18°F

-8°C

Humidity 49%
Wind Speed SW 3 mph
Barometer 30.33 in (1029.3 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 28 Jan 12:52 am CST
Extended Forecast for

Sergeant Bluff IA

  • Overnight

    Overnight: Partly cloudy, with a low around 6. West wind around 5 mph becoming calm.

    Low: 6 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 8. East northeast wind around 5 mph.

    Low: 8 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 20. North northeast wind around 5 mph.

    High: 20 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -2. North northeast wind around 5 mph.

    Low: -2 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 13. North northeast wind 5 to 10 mph.

    High: 13 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -5.

    Low: -5 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 6. West wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 27. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 8. East northeast wind around 5 mph.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 20. North northeast wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around -2. North northeast wind around 5 mph.
Friday
Sunny, with a high near 13. North northeast wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around -5.
Saturday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 21.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11.
Sunday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 34.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 35.
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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:
10:07 pm CST Jan 27, 2026
Forecast Valid:
1am CST Jan 28, 2026-6pm CST Feb 3, 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