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Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

87°F

31°C

Humidity 61%
Wind Speed Calm
Barometer 29.87 in (1010.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 4 Sep 11:52 am CDT
Extended Forecast for

Sergeant Bluff IA

Heat Advisory September 4, 01:00pm until September 4, 06:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. Heat index values as high as 103. West wind around 5 mph becoming east.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. East southeast wind around 5 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between noon and 2pm. Mostly sunny, with a high near 93. Heat index values as high as 102. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 70. Southeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 89. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. East southeast wind around 10 mph.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Labor Day

    Labor Day: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 103. West wind around 5 mph becoming east.
Tonight
Mostly clear, with a low around 71. East southeast wind around 5 mph.
Saturday
A slight chance of showers and thunderstorms between noon and 2pm. Mostly sunny, with a high near 93. Heat index values as high as 102. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night
A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 70. Southeast wind around 5 mph.
Sunday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 89. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. East southeast wind around 10 mph.
Labor Day
Partly sunny, with a high near 89.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74.
Tuesday
A 50 percent chance of showers. Mostly sunny, with a high near 90.
Tuesday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sergeant Bluff IA
 42.41°N 96.35°W (Elev. 1194 ft)
Last Update:
11:47 am CDT Sep 4, 2026
Forecast Valid:
12pm CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation