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 10 mph
Barometer 29.88 in (1010.9 mb)
Dewpoint 73°F (23°C)
Visibility 8.00 mi
Last update 7 Aug 10:52 pm CDT
Extended Forecast for

North Sioux City SD

Heat Advisory August 8, 02:00pm until August 8, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 93. Heat index values as high as 105. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 70. South wind around 10 mph becoming north northwest after midnight.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 83. North northwest wind 5 to 10 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the morning.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 72. Southeast wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 93. Heat index values as high as 105. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 70. South wind around 10 mph becoming north northwest after midnight.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 83. North northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the morning.
Sunday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 86.
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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:
10:45 pm CDT Aug 7, 2025
Forecast Valid:
11pm CDT Aug 7, 2025-6pm CDT Aug 14, 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