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July 20th, 2025 :: 8:23 am CDT   

Local Weather Report for
Petersburg
Illinois, United States

 Current Petersburg Weather Conditions Updated July 20th at 6:55 am 
Overcast
Temperature:25°C Dew Point:24°C
Barometer:101.5 kPa Wind:calm
Humidity:94.2% Visibility:0 Km
 
 Petersburg Weather Forecast Summary  
 
Today
Jul 20th
Monday
Jul 21st
Tuesday
Jul 22nd
Wednesday
Jul 23rd
Thursday
Jul 24th
Cloudy Thundershowers Thundershowers Thundershowers Thundershowers
34°C
30°C
23°C
33°C
23°C
32°C
24°C
32°C
24°C
 
 Petersburg Detailed Weather Forecast  
 
Sunday, July 20th, 2025
Morning Temperature: 29°C
A mix of sun and cloud. Chance of a thunderstorm.
Afternoon Temperature: 32°C
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Evening Temperature: 26°C
Clear. Chance of a thunderstorm.
Monday, July 21st, 2025
Overnight Temperature: 24°C
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 28°C
Cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 29°C
A mix of cloud and sun with a chance of showers or thundershowers.
Evening Temperature: 24°C
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm.
Tuesday, July 22nd, 2025
Overnight Temperature: 23°C
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm.
Morning Temperature: 30°C
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 32°C
A mix of cloud and sun with a few showers. Chance of a thunderstorm.
Evening Temperature: 25°C
Cloudy with a chance of showers or thundershowers.
Wednesday, July 23rd, 2025
Overnight Temperature: 25°C
Cloudy with a chance of showers or thundershowers.
Morning Temperature: 29°C
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 32°C
Cloudy with a chance of showers or thundershowers.
Evening Temperature: 24°C
Cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Thursday, July 24th, 2025
Overnight Temperature: 24°C
A mix of cloudy and clear skies with a chance of showers or thundershowers.
Morning Temperature: 31°C
Cloudy with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 30°C
Sunny with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 24°C
Cloudy with a few showers. Chance of a thunderstorm.
Friday, July 25th, 2025
Overnight Temperature: 24°C
A mix of cloudy and clear skies. Chance of a thunderstorm.
Morning Temperature: 30°C
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 31°C
Cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 23°C
Cloudy with periods of rain. Slight chance of a thunderstorm.
Saturday, July 26th, 2025
Overnight Temperature: 23°C
Cloudy with showers likely. Chance of a thunderstorm.
Morning Temperature: 27°C
A mix of cloud and sun with showers likely. Chance of a thunderstorm.
Afternoon Temperature: 30°C
A mix of cloud and sun with showers likely. Chance of a thunderstorm.
Evening Temperature: 24°C
Cloudy with a chance of showers or thundershowers. Windy at times.
Sunday, July 27th, 2025
Overnight Temperature: 24°C
Cloudy. Chance of a thunderstorm.
Morning Temperature: 29°C
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 31°C
A mix of sun and cloud with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 25°C
Cloudy with showers likely. Chance of a thunderstorm.
Monday, July 28th, 2025
Overnight Temperature: 23°C
Cloudy with showers likely. Chance of a thunderstorm.
Morning Temperature: 27°C
Cloudy with showers likely. Chance of a thunderstorm.
Afternoon Temperature: 30°C
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 25°C
Clear. Chance of a thunderstorm.





 

  [ Local Weather Report ]
Fairview Heights, IL 
6:53 AM  26°C
Overcast
 
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6:55 AM  25°C
Overcast
 
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6:53 AM  26°C
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Lebanon, IL 
6:55 AM  25°C
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6:55 AM  25°C
Overcast
 
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6:53 AM  26°C
Overcast
 
Mascoutah, IL 
6:55 AM  25°C
Overcast
 
Troy, IL 
 
Centreville, IL 
6:53 AM  26°C
Overcast
 
Cahokia, IL 
6:53 AM  26°C
Overcast

This WeatherCity Weather Forecast for Petersburg, 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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