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

39°F

4°C

Humidity 67%
Wind Speed S 5 mph
Barometer 29.98 in (1016.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 12 Jan 6:52 pm CST
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Partly cloudy, with a low around 37. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 55. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 55 °F

    Partly Sunny
    then Chance
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. North northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 32. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 32 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17. North wind around 5 mph becoming calm.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 41. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 41 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow. Mostly cloudy, with a high near 33. Breezy.

    High: 33 °F

    Chance Snow
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10. Blustery.

    Low: 10 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
A 30 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 55. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 25. North northwest wind around 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 32. North wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 17. North wind around 5 mph becoming calm.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 41. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 33. Breezy.
Friday Night
Mostly cloudy, with a low around 10. Blustery.
Saturday
A 20 percent chance of snow before noon. Partly sunny, with a high near 20.
Saturday Night
Partly cloudy, with a low around 4.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 33.
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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:
6:18 pm CST Jan 12, 2026
Forecast Valid:
6pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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