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June 17th, 2026 :: 12:26 pm CDT   

Local Weather Report for
Charleston
Illinois, United States

 Current Charleston Weather Conditions Updated June 17th at 10:53 am 
Temperature:70°F Dew Point:64°F
Barometer:29.59 inHg Wind:N 21 Mph
Humidity:83.0% Visibility:0M
 
 Charleston Weather Forecast Summary  
 
Today
Jun 17th
Thursday
Jun 18th
Friday
Jun 19th
Saturday
Jun 20th
Sunday
Jun 21st
Thundershowers Mostly Cloudy with Showers Mostly Sunny Mix of Cloud and Sun Rain
82°F
72°F
62°F
76°F
57°F
75°F
61°F
65°F
56°F
 
 Charleston Detailed Weather Forecast  
 
Wednesday, June 17th, 2026
Afternoon Temperature: 81°F
Sunny with cloudy periods. Chance of a thunderstorm. Wind 25 to 40 mph.
Evening Temperature: 76°F
Mostly cloudy with a few showers. Chance of a thunderstorm. Wind 20 to 30 mph.
Thursday, June 18th, 2026
Overnight Temperature: 64°F
Clear with showers likely. Windy at times.
Morning Temperature: 66°F
Mostly sunny. Windy at times.
Afternoon Temperature: 71°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 66°F
Mostly clear.
Friday, June 19th, 2026
Overnight Temperature: 58°F
Clear.
Morning Temperature: 65°F
Mostly sunny.
Afternoon Temperature: 76°F
Mostly sunny. Windy at times.
Evening Temperature: 68°F
Mostly clear.
Saturday, June 20th, 2026
Overnight Temperature: 62°F
Cloudy with clear periods.
Morning Temperature: 66°F
Mostly cloudy.
Afternoon Temperature: 72°F
A mix of cloud and sun.
Evening Temperature: 71°F
Mostly clear.
Sunday, June 21st, 2026
Overnight Temperature: 65°F
Mostly cloudy.
Morning Temperature: 63°F
Cloudy with periods of rain. Windy at times.
Afternoon Temperature: 62°F
A mix of cloud and sun with rain. Wind 20 to 30 mph.
Evening Temperature: 59°F
Clear. Windy at times.
Monday, June 22nd, 2026
Overnight Temperature: 50°F
Clear.
Morning Temperature: 58°F
Sunny.
Afternoon Temperature: 70°F
Mostly sunny.
Evening Temperature: 64°F
Mostly clear.
Tuesday, June 23rd, 2026
Overnight Temperature: 56°F
Clear.
Morning Temperature: 63°F
Sunny.
Afternoon Temperature: 73°F
Sunny with cloudy periods.
Evening Temperature: 67°F
Clear with cloudy periods.
Wednesday, June 24th, 2026
Overnight Temperature: 59°F
Mostly clear.
Morning Temperature: 66°F
Sunny.
Afternoon Temperature: 77°F
Sunny.
Evening Temperature: 71°F
Clear.
Thursday, June 25th, 2026
Overnight Temperature: 63°F
Clear.
Morning Temperature: 69°F
Mostly sunny. Windy at times.
Afternoon Temperature: 79°F
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 73°F
Mostly clear. Slight chance of a thunderstorm.





 

  [ Local Weather Report ]
Mattoon, IL 
10:53 AM  70°F
 
 
Casey, IL 
 
Tuscola, IL 
 
Sullivan, IL 
 
Marshall, IL 
 
Paris, IL 
10:55 AM  68°F
 
 
Shelbyville, IL 
 
Effingham, IL 
10:55 AM  73°F
 
 
Newton, IL 
 
Champaign, IL 
10:53 AM  63°F
light rain

 
This WeatherCity Weather Forecast for Charleston, 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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