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.

A Few Clouds

11°F

-12°C

Humidity 48%
Wind Speed W 12 mph
Barometer 30.39 in (1031.8 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 19 Jan 12:52 pm CST
Extended Forecast for

Sioux City IA

  • M.L.King Day

    M.L.King Day: Increasing clouds, with a high near 18. West wind 5 to 10 mph.

    High: 18 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 3. West northwest wind around 5 mph becoming calm.

    Low: 3 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 28. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 28 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 14. South southeast wind 5 to 10 mph becoming northwest after midnight.

    Low: 14 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 38. Breezy, with a west southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 38 °F

    Mostly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 9. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 9 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -9.

    Low: -9 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 2.

    High: 2 °F

    Partly Sunny

Detailed Forecast

M.L.King Day
Increasing clouds, with a high near 18. West wind 5 to 10 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 3. West northwest wind around 5 mph becoming calm.
Tuesday
A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 28. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of snow before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 14. South southeast wind 5 to 10 mph becoming northwest after midnight.
Wednesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 38. Breezy, with a west southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph.
Wednesday Night
Mostly clear, with a low around 9. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Thursday
Partly sunny, with a high near 25.
Thursday Night
Mostly cloudy, with a low around -9.
Friday
Partly sunny, with a high near 2.
Friday Night
Mostly cloudy, with a low around -12.
Saturday
Mostly sunny, with a high near 12.
Saturday Night
Partly cloudy, with a low around -2.
Sunday
Mostly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
12:53 pm CST Jan 19, 2026
Forecast Valid:
1pm CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation