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

54°F

12°C

Humidity 47%
Wind Speed SW 13 mph
Barometer 29.22 in (989.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 17 Feb 9:52 pm CST
Extended Forecast for

Sioux City IA

Wind Advisory February 18, 02:00am until February 18, 12:00pm
Red Flag Warning February 18, 10:00am until February 18, 06:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 39. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 35 mph.

    Low: 39 °F

    Partly Cloudy
    then Mostly
    Clear and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 61. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. North northwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 38. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. New snow accumulation of around 2 inches.

    High: 38 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    Low: 16 °F

    Snow Likely

  • Friday

    Friday: Mostly sunny, with a high near 32. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

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

    Low: 13 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 34.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 39. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 35 mph.
Wednesday
Sunny, with a high near 61. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 40 mph.
Wednesday Night
Partly cloudy, with a low around 27. North northwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 38. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. New snow accumulation of around 2 inches.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.
Friday
Mostly sunny, with a high near 32. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 13.
Saturday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Sunny, with a high near 28.
Sunday Night
Mostly clear, with a low around 6.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
10:09 pm CST Feb 17, 2026
Forecast Valid:
10pm CST Feb 17, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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