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.

A Few Clouds

85°F

29°C

Humidity 70%
Wind Speed Calm
Barometer 30.14 in (1019.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 20 Aug 11:52 am CDT
Extended Forecast for

Sergeant Bluff IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Northeast wind around 5 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. East wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, sunny, with a high near 85. South southeast wind around 5 mph.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 65. South southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. South southeast wind 5 to 10 mph becoming north in the afternoon.

    High: 82 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. North wind around 5 mph.

    Low: 58 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 65. East wind around 5 mph.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 85. South southeast wind around 5 mph.
Thursday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 65. South southeast wind around 5 mph. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. South southeast wind 5 to 10 mph becoming north in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. North wind around 5 mph.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 73.
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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:
11:41 am CDT Aug 20, 2025
Forecast Valid:
12pm CDT Aug 20, 2025-6pm CDT Aug 26, 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