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August 25th, 2025 :: 4:42 pm CDT   

Local Weather Report for
Sullivan
Illinois, United States

 Sullivan Weather Forecast Summary  
 
Today
Aug 25th
Tuesday
Aug 26th
Wednesday
Aug 27th
Thursday
Aug 28th
Friday
Aug 29th
Mostly Sunny Mostly Sunny Cloudy Mostly Sunny Cloudy
70°F
72°F
50°F
74°F
50°F
79°F
55°F
80°F
58°F
 
 Sullivan Detailed Weather Forecast  
 
Monday, August 25th, 2025
Evening Temperature: 58°F
Clear with cloudy periods.
Tuesday, August 26th, 2025
Overnight Temperature: 51°F
Clear.
Morning Temperature: 67°F
Mostly sunny.
Afternoon Temperature: 68°F
Sunny. Windy at times.
Evening Temperature: 54°F
Clear.
Wednesday, August 27th, 2025
Overnight Temperature: 51°F
Mostly clear.
Morning Temperature: 69°F
A mix of cloud and sun.
Afternoon Temperature: 70°F
Cloudy.
Evening Temperature: 61°F
Cloudy. Windy at times.
Thursday, August 28th, 2025
Overnight Temperature: 56°F
Clear with cloudy periods.
Morning Temperature: 74°F
Mostly sunny.
Afternoon Temperature: 76°F
Sunny. Slight chance of a thunderstorm.
Evening Temperature: 62°F
Clear.
Friday, August 29th, 2025
Overnight Temperature: 58°F
Clear.
Morning Temperature: 75°F
Sunny.
Afternoon Temperature: 75°F
Sunny. Windy at times.
Evening Temperature: 64°F
Cloudy. Windy at times.
Saturday, August 30th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 74°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 75°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 68°F
Cloudy. Windy at times.
Sunday, August 31st, 2025
Overnight Temperature: 62°F
Cloudy with a chance of showers.
Morning Temperature: 68°F
Cloudy with a slight chance of showers. Windy at times.
Afternoon Temperature: 67°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 66°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Monday, September 1st, 2025
Overnight Temperature: 65°F
Cloudy with showers likely.
Morning Temperature: 67°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Afternoon Temperature: 72°F
A mix of cloud and sun with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 66°F
Clear with cloudy periods with showers likely. Windy at times.
Tuesday, September 2nd, 2025
Overnight Temperature: 64°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 71°F
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 73°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 66°F
Cloudy.





 

  [ Local Weather Report ]
Shelbyville, IL 
 
Mattoon, IL 
3:53 PM  73°F
Overcast
 
Decatur, IL 
3:54 PM  73°F
Mostly Sunny
 
Tuscola, IL 
 
Charleston, IL 
3:53 PM  73°F
Overcast
 
Pana, IL 
 
Monticello, IL 
 
Champaign, IL 
3:53 PM  73°F
Overcast
 
Effingham, IL 
3:55 PM  73°F
Mostly Cloudy haze
 
Taylorville, IL 
3:57 PM  72°F
Mostly Cloudy

This WeatherCity Weather Forecast for Sullivan, 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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