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

49°F

9°C

Humidity 66%
Wind Speed E 5 mph
Barometer 29.82 in (1009.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 30 Mar 12:52 am CDT
Extended Forecast for

Sioux City IA

  • Overnight

    Overnight: 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 southwest 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 before 8pm, then a slight chance of showers after 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 46. South wind 5 to 10 mph becoming east southeast in the evening. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 58. Breezy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow showers before 1pm, then rain and snow showers between 1pm and 4pm, then rain showers after 4pm. High near 42. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance Snow
    Showers then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Showers. Low around 30. Chance of precipitation is 90%.

    Low: 30 °F

    Showers

  • Thursday

    Thursday: Rain and snow showers before 1pm, then a chance of rain showers. High near 41. Chance of precipitation is 80%.

    High: 41 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
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 southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 46. South wind 5 to 10 mph becoming east southeast in the evening. Chance of precipitation is 20%.
Tuesday
A slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 58. Breezy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 32. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of snow showers before 1pm, then rain and snow showers between 1pm and 4pm, then rain showers after 4pm. High near 42. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Showers. Low around 30. Chance of precipitation is 90%.
Thursday
Rain and snow showers before 1pm, then a chance of rain showers. High near 41. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 28.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Friday Night
Rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
Last Update:
11:53 pm CDT Mar 29, 2026
Forecast Valid:
12am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation