Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

A Few Clouds and Windy

16°F

-9°C

Humidity 54%
Wind Speed NW 29 G 45 mph
Barometer 30.15 in (1023.0 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 18 Jan 6:52 pm CST
Extended Forecast for

Sioux City IA

Winter Weather Advisory January 18, 07:48pm until January 18, 09:00pm
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory January 18, 07:48pm until January 18, 09:00pm

    NOW until 9:00pm Sun

    Winter Weather Advisory

  • Tonight

    Low: 0 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • M.L.King Day

    M.L.King Day: Increasing clouds, with a high near 18. West wind 5 to 10 mph.

    High: 18 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 1. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 1 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 27. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 27 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight.  Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind 5 to 10 mph becoming northwest after midnight.

    Low: 16 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 0. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 40 mph.
M.L.King Day
Increasing clouds, with a high near 18. West wind 5 to 10 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 1. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 27. Light southwest wind becoming south 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind 5 to 10 mph becoming northwest after midnight.
Wednesday
Partly sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 7.
Thursday
Mostly sunny, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 6.
Friday
Partly sunny, with a high near 16.
Friday Night
Mostly cloudy, with a low around -5.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 8.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -6.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 13.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
4:48 pm CST Jan 18, 2026
7pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
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