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

-2°F

-19°C

Humidity 68%
Wind Speed NW 15 G 24 mph
Barometer 30.46 in (1034.1 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Wind Chill-22°F (-30°C)
Last update 19 Jan 6:52 am CST
Extended Forecast for

Sioux City IA

  • M.L.King Day

    M.L.King Day: Increasing clouds, with a high near 17. Wind chill values as low as -19. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 17 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. West northwest wind around 5 mph becoming calm.

    Low: 3 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 25. Light south wind increasing to 5 to 10 mph in the morning.

    High: 25 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. 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: Mostly sunny, with a high near 36. West southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 9. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 9 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -5.

    Low: -5 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 4.

    High: 4 °F

    Partly Sunny

Detailed Forecast

M.L.King Day
Increasing clouds, with a high near 17. Wind chill values as low as -19. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. West northwest wind around 5 mph becoming calm.
Tuesday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 25. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of snow before midnight. 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
Mostly sunny, with a high near 36. West southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 9. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Partly sunny, with a high near 26.
Thursday Night
Mostly cloudy, with a low around -5.
Friday
Partly sunny, with a high near 4.
Friday Night
Partly cloudy, with a low around -10.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 10.
Saturday Night
Partly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 24.
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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:
6:48 am CST Jan 19, 2026
Forecast Valid:
7am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation