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September 17th, 2025 :: 6:59 am CDT   

Local Weather Report for
Sioux City
Iowa, United States

 Sioux City Weather Forecast Summary  
 
Today
Sep 17th
Thursday
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Thundershowers Thundershowers Cloudy Showers Thundershowers
81°F
80°F
62°F
80°F
62°F
85°F
61°F
86°F
62°F
 
 Sioux City Detailed Weather Forecast  
 
Wednesday, September 17th, 2025
Morning Temperature: 76°F
Cloudy with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 73°F
Cloudy with a chance of showers or thundershowers.
Evening Temperature: 65°F
A mix of cloudy and clear skies with a chance of showers. Slight chance of a thunderstorm.
Thursday, September 18th, 2025
Overnight Temperature: 62°F
Cloudy with showers likely.
Morning Temperature: 73°F
Cloudy with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 77°F
Cloudy. Chance of a thunderstorm. Windy at times.
Evening Temperature: 64°F
Cloudy with a chance of showers.
Friday, September 19th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 71°F
A mix of cloud and sun.
Afternoon Temperature: 78°F
Sunny with cloudy periods with a slight chance of showers.
Evening Temperature: 64°F
Clear.
Saturday, September 20th, 2025
Overnight Temperature: 62°F
A mix of cloudy and clear skies.
Morning Temperature: 76°F
Cloudy. Windy at times.
Afternoon Temperature: 82°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 66°F
Cloudy with showers likely.
Sunday, September 21st, 2025
Overnight Temperature: 63°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 77°F
Cloudy. Chance of a thunderstorm. Windy.
Afternoon Temperature: 84°F
Cloudy. Chance of a thunderstorm. Windy at times.
Evening Temperature: 72°F
Clear. Chance of a thunderstorm. Windy at times.
Monday, September 22nd, 2025
Overnight Temperature: 66°F
Clear. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 80°F
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 70°F
Sunny with cloudy periods with a few showers. Windy at times.
Evening Temperature: 57°F
Clear.
Tuesday, September 23rd, 2025
Overnight Temperature: 52°F
Clear with cloudy periods.
Morning Temperature: 72°F
Sunny. Windy.
Afternoon Temperature: 77°F
Sunny. Windy at times.
Evening Temperature: 59°F
Clear.
Wednesday, September 24th, 2025
Overnight Temperature: 53°F
Clear.
Morning Temperature: 72°F
Sunny.
Afternoon Temperature: 77°F
Sunny.
Evening Temperature: 61°F
Clear.
Thursday, September 25th, 2025
Overnight Temperature: 60°F
Clear.
Morning Temperature: 81°F
Sunny. Windy.
Afternoon Temperature: 88°F
Sunny. Windy.
Evening Temperature: 73°F
Clear. Windy at times.





 

  [ Local Weather Report ]
Sergeant Bluff, IA 
 
North Sioux City, SD 
 
Le Mars, IA 
5:55 AM  64°F
Mostly Cloudy
 
Onawa, IA 
 
Vermillion, SD 
5:55 AM  66°F
Overcast
 
Orange City, IA 
 
Tekamah, NE 
5:51 AM  64°F
heavy thunderstorm with rain mist
 
Alton, IA 
 
Cherokee, IA 
5:55 AM  66°F
Partly Clear
 
Sioux Center, IA 
5:55 AM  64°F
Mostly Cloudy

This WeatherCity Weather Forecast for Sioux City, Iowa, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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