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 and Breezy

13°F

-11°C

Humidity 61%
Wind Speed NW 25 G 38 mph
Barometer 30.21 in (1025.3 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 18 Jan 8:52 pm CST
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Partly cloudy, with a low around 0. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 0 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • 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

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 1. West northwest wind around 5 mph becoming calm in the evening.

    Low: 1 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 27. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 27 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind 5 to 10 mph becoming northwest after midnight.

    Low: 16 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 0. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
M.L.King Day
Increasing clouds, with a high near 18. West wind 5 to 10 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 1. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 27. Light southwest wind becoming south 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind 5 to 10 mph becoming northwest after midnight.
Wednesday
Partly sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 7.
Thursday
Mostly sunny, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 6.
Friday
Partly sunny, with a high near 16.
Friday Night
Mostly cloudy, with a low around -5.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 8.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -6.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 13.
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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:
8:38 pm CST Jan 18, 2026
Forecast Valid:
9pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation