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

74°F

23°C

Humidity 31%
Wind Speed S 14 mph
Barometer 29.80 in (1009.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 29 Mar 4:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Mostly clear, with a low around 44. Southeast wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 84. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A slight chance of showers, with thunderstorms also possible after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Northwest wind 5 to 10 mph becoming southeast after midnight. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 58. Breezy, with a north wind 20 to 25 mph, with gusts as high as 50 mph.

    High: 58 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow before 1pm, then rain and snow likely. Cloudy, with a high near 45. East northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely. Cloudy, with a low around 32. Chance of precipitation is 70%.

    Low: 32 °F

    Rain Likely

  • Thursday

    Thursday: Rain and snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.

    High: 47 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 44. Southeast wind around 5 mph.
Monday
Increasing clouds, with a high near 84. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Monday Night
A slight chance of showers, with thunderstorms also possible after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Northwest wind 5 to 10 mph becoming southeast after midnight. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 58. Breezy, with a north wind 20 to 25 mph, with gusts as high as 50 mph.
Tuesday Night
Mostly cloudy, with a low around 31. North wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of snow before 1pm, then rain and snow likely. Cloudy, with a high near 45. East northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain likely. Cloudy, with a low around 32. Chance of precipitation is 70%.
Thursday
Rain and snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 57.
Friday Night
Showers likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 51. Breezy.
Saturday Night
Partly cloudy, with a low around 29. Blustery.
Sunday
Mostly sunny, with a high near 48.
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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:
1:48 pm CDT Mar 29, 2026
Forecast Valid:
5pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation