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

41°F

5°C

Humidity 79%
Wind Speed E 8 mph
Barometer 29.71 in (1006.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 17 Feb 2:52 am CST
Extended Forecast for

Sioux City IA

  • Overnight

    Overnight: Cloudy, with a low around 39. East wind 5 to 10 mph.

    Low: 39 °F

    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71. Breezy, with an east wind 10 to 20 mph becoming south in the afternoon. Winds could gust as high as 30 mph.

    High: 71 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Breezy.
    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. West northwest wind 5 to 10 mph becoming north northeast in the evening.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Snow likely, mainly after noon. Partly sunny, with a high near 40. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 40 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Chance of precipitation is 70%.

    Low: 15 °F

    Snow Likely

  • Friday

    Friday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 28.

    High: 28 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 39. East wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 71. Breezy, with an east wind 10 to 20 mph becoming south in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 60. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 28. West northwest wind 5 to 10 mph becoming north northeast in the evening.
Thursday
Snow likely, mainly after noon. Partly sunny, with a high near 40. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Chance of precipitation is 70%.
Friday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 13.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
Mostly clear, with a low around 10.
Sunday
Sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 7.
Monday
Sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
3:28 am CST Feb 17, 2026
Forecast Valid:
3am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation