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January 21st, 2026 :: 5:00 am CST   

Local Weather Report for
Peru
Illinois, United States

 Current Peru Weather Conditions Updated January 21st at 3:59 am 
Overcast
Temperature:32°F Dew Point:12°F
Barometer:29.95 inHg Wind:N 21 Mph
Humidity:42.6% Visibility:0M
 
 Peru Weather Forecast Summary  
 
Today
Jan 21st
Thursday
Jan 22nd
Friday
Jan 23rd
Saturday
Jan 24th
Sunday
Jan 25th
Cloudy Cloudy Cloudy Cloudy Cloudy
32°F
27°F
6°F
-2°F
-9°F
9°F
-6°F
18°F
9°F
 
 Peru Detailed Weather Forecast  
 
Wednesday, January 21st, 2026
Morning Temperature: 29°F
Sunny with cloudy periods with a chance of flurries or showers. Windy.
Afternoon Temperature: 32°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 26°F
Mostly clear with a chance of flurries. Windy.
Thursday, January 22nd, 2026
Overnight Temperature: 18°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 24°F
Cloudy. Windy at times.
Afternoon Temperature: 21°F
Cloudy with sunny periods. Windy at times.
Evening Temperature: 11°F
Cloudy. Windy.
Friday, January 23rd, 2026
Overnight Temperature: -5°F
Cloudy. Windy.
Morning Temperature: -6°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: -4°F
Sunny. Windy at times.
Evening Temperature: -5°F
A mix of cloudy and clear skies.
Saturday, January 24th, 2026
Overnight Temperature: -6°F
A mix of cloudy and clear skies.
Morning Temperature: 1°F
Cloudy.
Afternoon Temperature: 7°F
Cloudy.
Evening Temperature: 9°F
Cloudy.
Sunday, January 25th, 2026
Overnight Temperature: 11°F
Cloudy.
Morning Temperature: 15°F
Cloudy.
Afternoon Temperature: 15°F
Cloudy.
Evening Temperature: 10°F
Clear with cloudy periods. Windy at times.
Monday, January 26th, 2026
Overnight Temperature: 5°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 8°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 9°F
Sunny. Windy at times.
Evening Temperature: 8°F
Clear. Windy at times.
Tuesday, January 27th, 2026
Overnight Temperature: 10°F
Clear. Windy at times.
Morning Temperature: 24°F
Sunny. Windy.
Afternoon Temperature: 28°F
Sunny. Windy at times.
Evening Temperature: 25°F
Clear. Windy at times.
Wednesday, January 28th, 2026
Overnight Temperature: 21°F
Cloudy.
Morning Temperature: 26°F
Cloudy. Windy at times.
Afternoon Temperature: 26°F
Cloudy. Windy at times.
Evening Temperature: 25°F
Cloudy with a chance of flurries. Windy at times.
Thursday, January 29th, 2026
Overnight Temperature: 17°F
Cloudy with a chance of flurries. Windy.
Morning Temperature: 13°F
Sunny with cloudy periods. Windy.
Afternoon Temperature: 9°F
Sunny. Windy at times.
Evening Temperature: 6°F
Mostly clear. Windy at times.





 

  [ Local Weather Report ]
La Salle, IL 
3:59 AM  32°F
Overcast
 
Oglesby, IL 
3:59 AM  32°F
Overcast
 
Mendota, IL 
 
Ottawa, IL 
 
Princeton, IL 
 
Henry, IL 
 
Marseilles, IL 
 
Streator, IL 
 
Lacon, IL 
3:55 AM  32°F
Overcast
 
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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