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January 20th, 2026 :: 4:20 am CST   

Local Weather Report for
Peru
Illinois, United States

 Current Peru Weather Conditions Updated January 20th at 2:59 am 
Temperature:5°F Dew Point:-2°F
Barometer:30.36 inHg Wind:N 13 Mph
Humidity:64.3% Visibility:0M
 
 Peru Weather Forecast Summary  
 
Today
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Friday
Jan 23rd
Saturday
Jan 24th
Cloudy Cloudy Cloudy Mix of Cloud and Sun Cloudy
25°F
32°F
23°F
22°F
5°F
-1°F
-8°F
11°F
-2°F
 
 Peru Detailed Weather Forecast  
 
Tuesday, January 20th, 2026
Morning Temperature: 16°F
Cloudy. Windy at times.
Afternoon Temperature: 21°F
Mostly cloudy.
Evening Temperature: 24°F
Cloudy.
Wednesday, January 21st, 2026
Overnight Temperature: 27°F
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: 28°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 30°F
Cloudy. Windy at times.
Evening Temperature: 29°F
Cloudy. Windy.
Thursday, January 22nd, 2026
Overnight Temperature: 21°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 20°F
Cloudy. Windy.
Afternoon Temperature: 16°F
Cloudy. Windy at times.
Evening Temperature: 8°F
Clear with cloudy periods. Windy at times.
Friday, January 23rd, 2026
Overnight Temperature: -5°F
Clear. Windy.
Morning Temperature: -5°F
Sunny. Windy at times.
Afternoon Temperature: -3°F
Sunny. Windy at times.
Evening Temperature: -3°F
A mix of cloudy and clear skies.
Saturday, January 24th, 2026
Overnight Temperature: -2°F
Cloudy.
Morning Temperature: 6°F
Cloudy.
Afternoon Temperature: 10°F
Mostly cloudy.
Evening Temperature: 9°F
Cloudy.
Sunday, January 25th, 2026
Overnight Temperature: 8°F
Cloudy.
Morning Temperature: 11°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 9°F
Sunny.
Evening Temperature: 6°F
Clear.
Monday, January 26th, 2026
Overnight Temperature: 6°F
Clear. Windy at times.
Morning Temperature: 26°F
Sunny with cloudy periods. Windy.
Afternoon Temperature: 31°F
Cloudy.
Evening Temperature: 25°F
Clear with cloudy periods.
Tuesday, January 27th, 2026
Overnight Temperature: 19°F
Cloudy.
Morning Temperature: 25°F
Cloudy.
Afternoon Temperature: 25°F
Cloudy.
Evening Temperature: 21°F
Clear with cloudy periods.
Wednesday, January 28th, 2026
Overnight Temperature: 15°F
Clear. Windy at times.
Morning Temperature: 16°F
Sunny. Windy at times.
Afternoon Temperature: 15°F
Sunny. Windy at times.
Evening Temperature: 11°F
Clear. Windy at times.





 

  [ Local Weather Report ]
La Salle, IL 
2:59 AM  5°F
 
 
Oglesby, IL 
2:59 AM  5°F
 
 
Mendota, IL 
 
Ottawa, IL 
 
Princeton, IL 
 
Henry, IL 
 
Marseilles, IL 
 
Streator, IL 
 
Lacon, IL 
2:55 AM  5°F
 
 
Chillicothe, IL 

 
This WeatherCity Weather Forecast for Peru, 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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