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

75°F

24°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 29.90 in (1011.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 17 Aug 1:52 am CDT
Extended Forecast for

North Sioux City SD

  • Overnight

    Overnight: Partly cloudy, with a low around 73. Southeast wind around 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind 5 to 10 mph.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 91. Heat index values as high as 100. South wind around 5 mph.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. Northeast wind around 5 mph. Chance of precipitation is 10%.

    High: 85 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 73. Southeast wind around 10 mph.
Sunday
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 91. Heat index values as high as 100. South wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. East wind around 5 mph.
Tuesday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. Northeast wind around 5 mph. Chance of precipitation is 10%.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 63.
Friday
Mostly sunny, with a high near 85.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
North Sioux City SD
 42.54°N 96.5°W (Elev. 1099 ft)
Last Update:
1:26 am CDT Aug 17, 2025
Forecast Valid:
2am CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
Forecast Discussion
 
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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