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August 25th, 2025 :: 11:26 pm CDT   

Local Weather Report for
Waterloo
Illinois, United States

 Waterloo Weather Forecast Summary  
 
Today
Aug 25th
Tuesday
Aug 26th
Wednesday
Aug 27th
Thursday
Aug 28th
Friday
Aug 29th
Cloudy Sunny Cloudy Cloudy Cloudy
75°F
75°F
52°F
81°F
51°F
77°F
61°F
86°F
59°F
 
 Waterloo Detailed Weather Forecast  
 
Tuesday, August 26th, 2025
Overnight Temperature: 52°F
Clear.
Morning Temperature: 71°F
Sunny. Windy at times.
Afternoon Temperature: 71°F
Sunny. Windy at times.
Evening Temperature: 57°F
Clear.
Wednesday, August 27th, 2025
Overnight Temperature: 52°F
Clear.
Morning Temperature: 74°F
Sunny.
Afternoon Temperature: 77°F
Cloudy.
Evening Temperature: 64°F
Cloudy.
Thursday, August 28th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 74°F
Cloudy.
Afternoon Temperature: 74°F
A mix of cloud and sun.
Evening Temperature: 62°F
Clear.
Friday, August 29th, 2025
Overnight Temperature: 60°F
Clear.
Morning Temperature: 79°F
Sunny.
Afternoon Temperature: 82°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 69°F
Cloudy. Windy at times.
Saturday, August 30th, 2025
Overnight Temperature: 61°F
Cloudy.
Morning Temperature: 75°F
Cloudy.
Afternoon Temperature: 75°F
Cloudy.
Evening Temperature: 65°F
Cloudy.
Sunday, August 31st, 2025
Overnight Temperature: 65°F
Cloudy.
Morning Temperature: 72°F
Cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 73°F
Cloudy with a few showers. Chance of a thunderstorm.
Evening Temperature: 67°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Monday, September 1st, 2025
Overnight Temperature: 66°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Morning Temperature: 77°F
Cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 80°F
Sunny with cloudy periods with showers likely. Chance of a thunderstorm.
Evening Temperature: 70°F
Clear with cloudy periods with a chance of showers or thundershowers. Windy at times.
Tuesday, September 2nd, 2025
Overnight Temperature: 67°F
Clear with cloudy periods with a chance of showers.
Morning Temperature: 81°F
Sunny with cloudy periods. Chance of a thunderstorm.
Afternoon Temperature: 84°F
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 69°F
Cloudy.





 

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This WeatherCity Weather Forecast for Waterloo, Illinois, 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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