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

90°F

32°C

Humidity 66%
Wind Speed SE 5 mph
Barometer 29.92 in (1012.2 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 17 Aug 2:52 pm CDT
Extended Forecast for

3 Miles NNE Sioux City IA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 101. South wind around 10 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 70. South wind 5 to 10 mph becoming west southwest after midnight.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 89. South southeast wind around 5 mph becoming west northwest in the afternoon.

    High: 89 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. North northeast wind around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 101. South wind around 10 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 70. South wind 5 to 10 mph becoming west southwest after midnight.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 89. South southeast wind around 5 mph becoming west northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 85. North northeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 63.
Friday
Mostly sunny, with a high near 84.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Sioux City IA
 42.54°N 96.36°W (Elev. 1132 ft)
Last Update:
1:56 pm CDT Aug 17, 2025
Forecast Valid:
3pm 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