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September 18th, 2025 :: 11:27 pm CDT   

Local Weather Report for
Savanna
Illinois, United States

 Savanna Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Cloudy Cloudy Cloudy Showers Thundershowers
88°F
78°F
60°F
81°F
60°F
70°F
64°F
78°F
64°F
 
 Savanna Detailed Weather Forecast  
 
Friday, September 19th, 2025
Overnight Temperature: 61°F
A mix of cloudy and clear skies.
Morning Temperature: 71°F
Cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 74°F
Cloudy with a slight chance of showers or thundershowers.
Evening Temperature: 64°F
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Saturday, September 20th, 2025
Overnight Temperature: 60°F
A mix of cloudy and clear skies.
Morning Temperature: 75°F
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 76°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 67°F
Cloudy. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 64°F
Cloudy.
Morning Temperature: 66°F
Cloudy with showers. Windy at times.
Afternoon Temperature: 69°F
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 65°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Monday, September 22nd, 2025
Overnight Temperature: 65°F
Cloudy with a few showers. Windy at times.
Morning Temperature: 75°F
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 68°F
Cloudy with a few showers. Slight chance of a thunderstorm.
Evening Temperature: 64°F
Cloudy with showers likely.
Tuesday, September 23rd, 2025
Overnight Temperature: 65°F
Cloudy with a few showers.
Morning Temperature: 74°F
A mix of cloud and sun. Chance of a thunderstorm.
Afternoon Temperature: 75°F
Cloudy. Chance of a thunderstorm.
Evening Temperature: 64°F
Cloudy with a few showers. Windy at times.
Wednesday, September 24th, 2025
Overnight Temperature: 59°F
Cloudy with showers likely.
Morning Temperature: 67°F
Cloudy.
Afternoon Temperature: 66°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Evening Temperature: 58°F
Cloudy with a few showers.
Thursday, September 25th, 2025
Overnight Temperature: 56°F
Cloudy. Windy at times.
Morning Temperature: 62°F
Cloudy. Windy at times.
Afternoon Temperature: 58°F
Cloudy with showers likely.
Evening Temperature: 56°F
Cloudy.
Friday, September 26th, 2025
Overnight Temperature: 54°F
Clear with cloudy periods.
Morning Temperature: 66°F
Sunny with cloudy periods.
Afternoon Temperature: 67°F
Sunny with cloudy periods.
Evening Temperature: 58°F
Clear.





 

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This WeatherCity Weather Forecast for Savanna, 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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