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

56°F

13°C

Humidity 97%
Wind Speed E 9 mph
Barometer 29.70 in (1005.1 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 13 Apr 2:52 am CDT
Extended Forecast for

Sioux City IA

  • Overnight

    Overnight: Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 83 °F

    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 76. North wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 50. North northeast wind 5 to 10 mph.

    Low: 50 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 73. East northeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before 1am. Partly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph.
Monday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming north after midnight.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 76. North wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 50. North northeast wind 5 to 10 mph.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 73. East northeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 70. Breezy.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
A 30 percent chance of snow showers. Partly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Sunny, with a high near 61.
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 96.39°W (Elev. 1099 ft)
Last Update:
3:03 am CDT Apr 13, 2026
Forecast Valid:
3am CDT Apr 13, 2026-6pm CDT Apr 19, 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