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.

Mostly Cloudy

41°F

5°C

Humidity 60%
Wind Speed NW 12 mph
Barometer 29.67 in (1005.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 15 Jan 9:52 pm CST
Extended Forecast for

Sioux City IA

Winter Weather Advisory January 16, 12:00am until January 16, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A chance of rain and flurries before 3am, then a chance of flurries between 3am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 27. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Blustery.
    Slight Chance
    Rain/Flurries
    then Chance
    Snow

  • Friday

    Friday: Snow likely, mainly between 2pm and 5pm. Patchy blowing snow between 2pm and 5pm. Increasing clouds, with a temperature falling to around 18 by 5pm. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 30 °F⇓

    Snow Likely
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 4. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    Low: 4 °F

    Blustery.
    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 11. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 11 °F

    Partly Sunny
    and Blustery

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33. Breezy, with a south wind 10 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 33 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

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

    Low: 3 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 18.

    High: 18 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain and flurries before 3am, then a chance of flurries between 3am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 27. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Friday
Snow likely, mainly between 2pm and 5pm. Patchy blowing snow between 2pm and 5pm. Increasing clouds, with a temperature falling to around 18 by 5pm. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 4. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Saturday
Partly sunny, with a high near 11. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 2. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Sunday
Partly sunny, with a high near 33. Breezy, with a south wind 10 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 3.
M.L.King Day
Sunny, with a high near 18.
Monday Night
Mostly clear, with a low around 5.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
Partly cloudy, with a low around 14.
Thursday
Partly sunny, with a high near 38.
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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:
9:48 pm CST Jan 15, 2026
Forecast Valid:
10pm CST Jan 15, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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