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

81°F

27°C

Humidity 74%
Wind Speed SW 9 mph
Barometer 29.94 in (1012.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Aug 9:52 am CDT
Extended Forecast for

Sergeant Bluff IA

  • Today

    Today: Scattered showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 92. Heat index values as high as 102. South wind around 10 mph. Chance of precipitation is 30%.

    High: 92 °F

    Scattered
    Showers

  • Tonight

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

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 96. Heat index values as high as 105. South wind around 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South wind around 10 mph.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 92. South wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny

  • 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.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 92. Heat index values as high as 102. South wind around 10 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 73. Southeast wind around 10 mph.
Saturday
Mostly sunny and hot, with a high near 96. Heat index values as high as 105. South wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South wind around 10 mph.
Sunday
Mostly sunny, with a high near 92. South wind 5 to 10 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.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sergeant Bluff IA
 42.39°N 96.35°W (Elev. 1089 ft)
Last Update:
10:26 am CDT Aug 15, 2025
Forecast Valid:
10am CDT Aug 15, 2025-6pm CDT Aug 21, 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