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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.48°N 96.41°W (Text-Only)
NWS Forecast for: South Sioux City NE
Issued by: National Weather Service Sioux Falls, SD
Last Update: 4:48 am CDT Jun 30, 2026		Print

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. South wind around 5 mph.

    Low: 67 °F

    Mostly Cloudy



  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny and hot, with a high near 95. South wind around 5 mph becoming calm.

    High: 95 °F

    Hot



  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly between 3am and 5am. Increasing clouds, with a low around 72. South wind 5 to 10 mph becoming east southeast in the evening.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 3pm, then a chance of rain between 3pm and 5pm, then a slight chance of showers after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 70. West southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 70 °F

    Chance
    Showers


  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday
    Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 70%.

    Low: 72 °F

    Showers
    Likely


  • Friday

    Friday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny



  • Friday
    Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms




    • Overnight: Mostly cloudy, with a low around 67. South wind around 5 mph.

    Tuesday: Partly sunny, then gradually becoming sunny and hot, with a high near 95. South wind around 5 mph becoming calm.

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly between 3am and 5am. Increasing clouds, with a low around 72. South wind 5 to 10 mph becoming east southeast in the evening.

    Wednesday: A chance of showers and thunderstorms before 3pm, then a chance of rain between 3pm and 5pm, then a slight chance of showers after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 70. West southwest wind 5 to 10 mph becoming light and variable in the evening.

    Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 70%.

    Friday: Mostly sunny, with a high near 94.

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

    Independence Day: Partly sunny, with a high near 93.

    Saturday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 68. Chance of precipitation is 60%.

    Sunday: Partly sunny, with a high near 88.

    Sunday Night: Partly cloudy, with a low around 66.

    Monday: Mostly sunny, with a high near 89.


    South Sioux City NE
     42.48°N 96.41°W (Elev. 1093 ft)

    Visit your local NWS office at: https://www.weather.gov/fsd/