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January 18th, 2026 :: 7:08 am CST   

Local Weather Report for
Charleston
Illinois, United States

 Current Charleston Weather Conditions Updated January 18th at 5:53 am 
Overcast
Temperature:12°F Dew Point:5°F
Barometer:30.15 inHg Wind:N 15 Mph
Humidity:69.7% Visibility:0M
 
 Charleston Weather Forecast Summary  
 
Today
Jan 18th
Monday
Jan 19th
Tuesday
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Cloudy Cloudy Cloudy Cloudy Cloudy
26°F
16°F
9°F
28°F
13°F
41°F
29°F
30°F
21°F
 
 Charleston Detailed Weather Forecast  
 
Sunday, January 18th, 2026
Morning Temperature: 21°F
Cloudy. Windy at times.
Afternoon Temperature: 26°F
Cloudy. Windy at times.
Evening Temperature: 24°F
Cloudy. Windy.
Monday, January 19th, 2026
Overnight Temperature: 13°F
Cloudy. Windy.
Morning Temperature: 12°F
Sunny. Windy.
Afternoon Temperature: 14°F
Sunny.
Evening Temperature: 14°F
Cloudy.
Tuesday, January 20th, 2026
Overnight Temperature: 14°F
Clear.
Morning Temperature: 23°F
Sunny. Windy at times.
Afternoon Temperature: 23°F
Sunny with cloudy periods.
Evening Temperature: 26°F
Cloudy. Windy.
Wednesday, January 21st, 2026
Overnight Temperature: 32°F
Cloudy. Windy.
Morning Temperature: 38°F
Sunny. Windy.
Afternoon Temperature: 30°F
Sunny.
Evening Temperature: 29°F
Cloudy. Windy at times.
Thursday, January 22nd, 2026
Overnight Temperature: 23°F
Clear. Windy at times.
Morning Temperature: 27°F
Cloudy. Windy at times.
Afternoon Temperature: 24°F
Sunny.
Evening Temperature: 24°F
Cloudy.
Friday, January 23rd, 2026
Overnight Temperature: 26°F
Cloudy. Windy at times.
Morning Temperature: 33°F
Cloudy. Windy.
Afternoon Temperature: 34°F
Cloudy with flurries or showers likely. Risk of freezing rain. Windy at times.
Evening Temperature: 36°F
Cloudy with a few showers. Showers possibly mixed with wet flurries.
Saturday, January 24th, 2026
Overnight Temperature: 30°F
Cloudy with a few flurries. Windy.
Morning Temperature: 23°F
Cloudy. Windy.
Afternoon Temperature: 12°F
Mostly cloudy. Windy.
Evening Temperature: 7°F
Mostly clear. Windy.
Sunday, January 25th, 2026
Overnight Temperature: 1°F
Clear. Windy.
Morning Temperature: 2°F
Sunny. Windy.
Afternoon Temperature: 4°F
Sunny. Windy at times.
Evening Temperature: 3°F
Mostly clear.
Monday, January 26th, 2026
Overnight Temperature: 4°F
Cloudy.
Morning Temperature: 13°F
Sunny.
Afternoon Temperature: 15°F
Sunny.
Evening Temperature: 14°F
Clear.





 

  [ Local Weather Report ]
Mattoon, IL 
5:53 AM  12°F
Overcast
 
Casey, IL 
 
Tuscola, IL 
 
Sullivan, IL 
 
Marshall, IL 
 
Paris, IL 
5:55 AM  14°F
Overcast
 
Shelbyville, IL 
 
Effingham, IL 
5:55 AM  12°F
 
 
Newton, IL 
 
Champaign, IL 
5:53 AM  12°F
Overcast

 
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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