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June 15th, 2026 :: 4:08 am CDT   

Local Weather Report for
Chester
Illinois, United States

 Current Chester Weather Conditions Updated June 15th at 2:55 am 
Overcast
Temperature:59°F Dew Point:57°F
Barometer:30.04 inHg Wind:N 6 Mph
Humidity:93.7% Visibility:0M
 
 Chester Weather Forecast Summary  
 
Today
Jun 15th
Tuesday
Jun 16th
Wednesday
Jun 17th
Thursday
Jun 18th
Friday
Jun 19th
Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
76°F
75°F
59°F
86°F
61°F
80°F
63°F
75°F
57°F
 
 Chester Detailed Weather Forecast  
 
Monday, June 15th, 2026
Morning Temperature: 65°F
Sunny.
Afternoon Temperature: 75°F
Mostly sunny.
Evening Temperature: 67°F
Mostly clear.
Tuesday, June 16th, 2026
Overnight Temperature: 60°F
Clear.
Morning Temperature: 67°F
Mostly sunny.
Afternoon Temperature: 75°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 68°F
Mostly clear with a chance of showers or thundershowers.
Wednesday, June 17th, 2026
Overnight Temperature: 62°F
Clear with a slight chance of showers.
Morning Temperature: 72°F
A mix of sun and cloud. Chance of a thunderstorm. Windy.
Afternoon Temperature: 83°F
Sunny with cloudy periods. Chance of a thunderstorm. Wind 20 to 30 mph.
Evening Temperature: 83°F
Mostly clear. Chance of a thunderstorm. Wind 20 to 30 mph.
Thursday, June 18th, 2026
Overnight Temperature: 73°F
Mostly clear with a chance of showers or thundershowers. Windy at times.
Morning Temperature: 71°F
A mix of cloud and sun with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 79°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 66°F
Mostly clear. Windy at times.
Friday, June 19th, 2026
Overnight Temperature: 58°F
Clear.
Morning Temperature: 65°F
Sunny. Windy at times.
Afternoon Temperature: 75°F
Sunny. Windy at times.
Evening Temperature: 66°F
Mostly clear.
Saturday, June 20th, 2026
Overnight Temperature: 58°F
Mostly clear.
Morning Temperature: 64°F
A mix of sun and cloud.
Afternoon Temperature: 76°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 70°F
A mix of cloudy and clear skies.
Sunday, June 21st, 2026
Overnight Temperature: 65°F
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 74°F
A mix of cloud and sun with a chance of showers or thundershowers. Windy.
Afternoon Temperature: 80°F
A mix of cloud and sun with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 70°F
Mostly clear with a chance of showers. Windy at times.
Monday, June 22nd, 2026
Overnight Temperature: 64°F
Cloudy with a chance of showers.
Morning Temperature: 65°F
Cloudy with a chance of showers. Windy at times.
Afternoon Temperature: 72°F
Cloudy.
Evening Temperature: 68°F
Clear with cloudy periods.
Tuesday, June 23rd, 2026
Overnight Temperature: 65°F
A mix of cloudy and clear skies.
Morning Temperature: 65°F
Cloudy with a chance of showers.
Afternoon Temperature: 71°F
A mix of cloud and sun with a chance of showers.
Evening Temperature: 71°F
Mostly clear.





 

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This WeatherCity Weather Forecast for Chester, 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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