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September 18th, 2025 :: 3:25 am CDT   

Local Weather Report for
Eureka
Illinois, United States

 Eureka Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Mostly Sunny Showers Cloudy Showers Thundershowers
32°C
28°C
17°C
30°C
17°C
26°C
18°C
28°C
18°C
 
 Eureka Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Overnight Temperature: 17°C
Clear.
Morning Temperature: 28°C
Mostly sunny.
Afternoon Temperature: 29°C
Sunny.
Evening Temperature: 21°C
Clear.
Friday, September 19th, 2025
Overnight Temperature: 17°C
A mix of cloudy and clear skies.
Morning Temperature: 26°C
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 26°C
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 20°C
Cloudy with showers likely.
Saturday, September 20th, 2025
Overnight Temperature: 18°C
A mix of clear and cloudy skies.
Morning Temperature: 26°C
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 28°C
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 22°C
A mix of cloudy and clear skies. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 20°C
Cloudy.
Morning Temperature: 26°C
Cloudy. Windy at times.
Afternoon Temperature: 23°C
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
Cloudy with showers likely. Windy at times.
Monday, September 22nd, 2025
Overnight Temperature: 19°C
Cloudy with showers. Windy at times.
Morning Temperature: 25°C
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 20°C
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 18°C
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Tuesday, September 23rd, 2025
Overnight Temperature: 18°C
Cloudy. Windy at times.
Morning Temperature: 24°C
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 25°C
Cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
Cloudy with showers. Slight chance of a thunderstorm.
Wednesday, September 24th, 2025
Overnight Temperature: 18°C
Cloudy with showers likely.
Morning Temperature: 18°C
Cloudy with a chance of showers.
Afternoon Temperature: 19°C
Cloudy with a slight chance of showers. Windy.
Evening Temperature: 14°C
Cloudy with a slight chance of showers.
Thursday, September 25th, 2025
Overnight Temperature: 13°C
A mix of cloudy and clear skies.
Morning Temperature: 18°C
Cloudy. Windy at times.
Afternoon Temperature: 16°C
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 15°C
Cloudy with a chance of showers. Windy at times.
Friday, September 26th, 2025
Overnight Temperature: 13°C
Cloudy. Windy at times.
Morning Temperature: 18°C
Sunny with cloudy periods.
Afternoon Temperature: 20°C
Sunny.
Evening Temperature: 16°C
A mix of cloudy and clear skies.





 

  [ Local Weather Report ]
Washington, IL 
 
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1:55 AM  16°C
 
 
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1:54 AM  19°C
 
 
West Peoria, IL 
1:54 AM  19°C
 
 
Lacon, IL 
1:55 AM  16°C
 
 
Peoria, IL 
1:54 AM  19°C
 
 
Pekin, IL 
1:54 AM  19°C
 
 
Bloomington, IL 
1:56 AM  16°C
 
 
Henry, IL 
1:55 AM  16°C
 

This WeatherCity Weather Forecast for Eureka, 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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