Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Partly Cloudy

89°F

32°C

Humidity 65%
Wind Speed SE 9 mph
Barometer 29.87 in (1010.6 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 1 Sep 3:52 pm CDT
Extended Forecast for

North Sioux City SD

Severe T-storm Watch until September 1, 11:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until September 1, 11:00pm

    NOW until 11:00pm Tue

    Severe T-storm Watch

  • This Afternoon

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe.  Mostly cloudy, with a low around 68. East southeast wind 5 to 10 mph becoming north northeast after midnight.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after midnight.  Partly cloudy, with a low around 69. Southeast wind 5 to 10 mph.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms before 7am.  Sunny, with a high near 91. East southeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 91 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. South wind 5 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Southeast wind around 10 mph.
Tonight
Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 68. East southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 69. Southeast wind 5 to 10 mph.
Thursday
A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 91. East southeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 72. South wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 92.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 66.
Labor Day
Partly sunny, with a high near 86.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
North Sioux City SD
 42.54°N 96.53°W (Elev. 1099 ft)
3:58 pm CDT Sep 1, 2026
4pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database