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August 9th, 2025 :: 6:35 pm CDT   

Local Weather Report for
Vandalia
Illinois, United States

 Vandalia Weather Forecast Summary  
 
Today
Aug 9th
Sunday
Aug 10th
Monday
Aug 11th
Tuesday
Aug 12th
Wednesday
Aug 13th
Cloudy Cloudy Mostly Sunny Thundershowers Thundershowers
87°F
86°F
69°F
87°F
70°F
87°F
71°F
87°F
68°F
 
 Vandalia Detailed Weather Forecast  
 
Saturday, August 9th, 2025
Evening Temperature: 73°F
Clear. Chance of a thunderstorm. Windy at times.
Sunday, August 10th, 2025
Overnight Temperature: 69°F
Clear.
Morning Temperature: 81°F
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 84°F
Cloudy. Chance of a thunderstorm.
Evening Temperature: 74°F
Clear. Chance of a thunderstorm. Windy at times.
Monday, August 11th, 2025
Overnight Temperature: 71°F
Mostly clear. Windy at times.
Morning Temperature: 81°F
Sunny with cloudy periods with a chance of showers or thundershowers.
Afternoon Temperature: 84°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 74°F
Mostly clear. Slight chance of a thunderstorm.
Tuesday, August 12th, 2025
Overnight Temperature: 71°F
Clear with cloudy periods.
Morning Temperature: 83°F
Sunny with cloudy periods with a slight chance of showers or thundershowers.
Afternoon Temperature: 81°F
Cloudy with showers likely. Chance of a thunderstorm. Windy.
Evening Temperature: 71°F
Cloudy with a few showers.
Wednesday, August 13th, 2025
Overnight Temperature: 70°F
A mix of cloudy and clear skies with a slight chance of showers.
Morning Temperature: 81°F
Cloudy with showers likely. Chance of a thunderstorm.
Afternoon Temperature: 81°F
Cloudy with showers likely. Chance of a thunderstorm.
Evening Temperature: 70°F
Cloudy with a chance of showers. Windy at times.
Thursday, August 14th, 2025
Overnight Temperature: 69°F
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 82°F
A mix of cloud and sun. Chance of a thunderstorm.
Afternoon Temperature: 85°F
Cloudy. Chance of a thunderstorm.
Evening Temperature: 77°F
Cloudy. Chance of a thunderstorm.
Friday, August 15th, 2025
Overnight Temperature: 72°F
A mix of cloudy and clear skies.
Morning Temperature: 84°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 83°F
Cloudy with a chance of showers or thundershowers.
Evening Temperature: 69°F
Cloudy with a chance of showers. Windy at times.
Saturday, August 16th, 2025
Overnight Temperature: 67°F
A mix of cloudy and clear skies.
Morning Temperature: 81°F
A mix of sun and cloud with a chance of showers or thundershowers.
Afternoon Temperature: 86°F
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 77°F
Cloudy. Chance of a thunderstorm.
Sunday, August 17th, 2025
Overnight Temperature: 72°F
Clear with cloudy periods. Chance of a thunderstorm. Windy at times.
Morning Temperature: 78°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 77°F
Cloudy. Chance of a thunderstorm. Windy at times.
Evening Temperature: 66°F
Clear.





 

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This WeatherCity Weather Forecast for Vandalia, 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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