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

22°F

-6°C

Humidity 96%
Wind Speed S 3 mph
Barometer 30.26 in (1025.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 12 Mar 2:52 am CDT
Extended Forecast for

Sioux City IA

High Wind Warning March 12, 09:00pm until March 13, 07:00am
Red Flag Warning March 12, 12:00pm until March 12, 09:00pm
Click here for hazard details and duration
High Wind Warning
Red Flag Warning

  • Overnight

    Overnight: Partly cloudy, with a low around 26. South wind around 5 mph.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 65 °F

    Mostly Cloudy
    and Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Windy, with a southwest wind 15 to 20 mph becoming northwest 25 to 30 mph in the evening. Winds could gust as high as 60 mph.

    Low: 29 °F

    Windy. Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 44. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of snow. Cloudy, with a low around 29. North wind around 5 mph becoming east after midnight. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 51 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Snow, possibly mixed with rain. Low around 25. Chance of precipitation is 90%.

    Low: 25 °F

    Rain/Snow

  • Sunday

    Sunday: Snow, possibly mixed with rain, becoming all snow after 7am. Patchy blowing snow. High near 32. Breezy. Chance of precipitation is 80%.

    High: 32 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 3. Blustery.

    Low: 3 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 26. South wind around 5 mph.
Thursday
Mostly cloudy, with a high near 65. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Thursday Night
A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Windy, with a southwest wind 15 to 20 mph becoming northwest 25 to 30 mph in the evening. Winds could gust as high as 60 mph.
Friday
Increasing clouds, with a high near 44. Breezy, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
A 50 percent chance of snow. Cloudy, with a low around 29. North wind around 5 mph becoming east after midnight. New snow accumulation of less than a half inch possible.
Saturday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. East wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Snow, possibly mixed with rain. Low around 25. Chance of precipitation is 90%.
Sunday
Snow, possibly mixed with rain, becoming all snow after 7am. Patchy blowing snow. High near 32. Breezy. Chance of precipitation is 80%.
Sunday Night
Partly cloudy, with a low around 3. Blustery.
Monday
Mostly sunny, with a high near 23.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 6.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 51.
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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:
1:33 am CDT Mar 12, 2026
Forecast Valid:
3am CDT Mar 12, 2026-6pm CDT Mar 18, 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