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September 18th, 2025 :: 10:27 pm CDT   

Local Weather Report for
Fairfield
Illinois, United States

 Current Fairfield Weather Conditions Updated September 18th at 8:55 pm 
Temperature:68°F Dew Point:57°F
Barometer:30.01 inHg Wind:calm
Humidity:68.4% Visibility:0M
 
 Fairfield Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Mix of Cloud and Sun Cloudy Showers Cloudy Thundershowers
95°F
94°F
65°F
90°F
66°F
92°F
67°F
92°F
66°F
 
 Fairfield Detailed Weather Forecast  
 
Friday, September 19th, 2025
Overnight Temperature: 66°F
A mix of cloudy and clear skies.
Morning Temperature: 88°F
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 85°F
Cloudy with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 69°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Saturday, September 20th, 2025
Overnight Temperature: 66°F
A mix of cloudy and clear skies with showers likely.
Morning Temperature: 84°F
A mix of cloud and sun. Slight chance of a thunderstorm.
Afternoon Temperature: 87°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 74°F
A mix of cloudy and clear skies.
Sunday, September 21st, 2025
Overnight Temperature: 68°F
Clear with cloudy periods.
Morning Temperature: 87°F
A mix of cloud and sun with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 83°F
A mix of cloud and sun with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 70°F
Cloudy with a chance of showers.
Monday, September 22nd, 2025
Overnight Temperature: 67°F
Cloudy with a chance of showers. Windy at times.
Morning Temperature: 84°F
Sunny with cloudy periods with a few showers. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 75°F
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 67°F
Cloudy with showers likely. Windy at times.
Tuesday, September 23rd, 2025
Overnight Temperature: 67°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 80°F
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 80°F
Cloudy. Slight chance of a thunderstorm. Windy.
Evening Temperature: 70°F
Cloudy with showers likely. Windy at times.
Wednesday, September 24th, 2025
Overnight Temperature: 67°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Morning Temperature: 73°F
Cloudy with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 65°F
Cloudy with showers likely.
Evening Temperature: 62°F
Clear with cloudy periods.
Thursday, September 25th, 2025
Overnight Temperature: 61°F
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 70°F
Sunny. Windy at times.
Afternoon Temperature: 73°F
Cloudy. Windy at times.
Evening Temperature: 65°F
A mix of cloudy and clear skies.
Friday, September 26th, 2025
Overnight Temperature: 60°F
Clear with cloudy periods.
Morning Temperature: 74°F
Cloudy. Windy at times.
Afternoon Temperature: 73°F
Cloudy.
Evening Temperature: 64°F
Cloudy.





 

  [ Local Weather Report ]
Flora, IL 
8:55 PM  70°F
 
 
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Mount Vernon, IL 
8:56 PM  75°F
 
 
Olney, IL 
8:55 PM  72°F
 
 
Salem, IL 
8:55 PM  79°F
 
 
Centralia, IL 
8:55 PM  72°F
 
 
Benton, IL 
 
Harrisburg, IL 
8:55 PM  70°F
 

This WeatherCity Weather Forecast for Fairfield, 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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