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January 17th, 2026 :: 4:47 pm CST   

Local Weather Report for
Peru
Illinois, United States

 Current Peru Weather Conditions Updated January 17th at 3:59 pm 
Overcast unknown precipitation
Temperature:18°F Dew Point:7°F
Barometer:30.09 inHg Wind:N 34 Mph
Humidity:59.9% Visibility:0M
 
 Peru Weather Forecast Summary  
 
Today
Jan 17th
Sunday
Jan 18th
Monday
Jan 19th
Tuesday
Jan 20th
Wednesday
Jan 21st
Cloudy Cloudy Cloudy Cloudy Cloudy
19°F
20°F
11°F
9°F
2°F
30°F
7°F
33°F
18°F
 
 Peru Detailed Weather Forecast  
 
Saturday, January 17th, 2026
Evening Temperature: 15°F
A mix of cloudy and clear skies. Windy at times.
Sunday, January 18th, 2026
Overnight Temperature: 11°F
Cloudy. Windy at times.
Morning Temperature: 17°F
Cloudy with a chance of flurries. Windy at times.
Afternoon Temperature: 20°F
Cloudy with a chance of flurries.
Evening Temperature: 17°F
Cloudy with a chance of flurries. Windy.
Monday, January 19th, 2026
Overnight Temperature: 4°F
Cloudy. Windy.
Morning Temperature: 5°F
Sunny with cloudy periods. Windy.
Afternoon Temperature: 7°F
Sunny. Windy at times.
Evening Temperature: 7°F
Clear. Windy at times.
Tuesday, January 20th, 2026
Overnight Temperature: 7°F
Clear.
Morning Temperature: 18°F
Cloudy. Windy.
Afternoon Temperature: 27°F
Cloudy. Windy.
Evening Temperature: 29°F
Cloudy. Windy.
Wednesday, January 21st, 2026
Overnight Temperature: 32°F
Cloudy. Windy.
Morning Temperature: 26°F
Cloudy. Windy.
Afternoon Temperature: 22°F
Cloudy. Windy at times.
Evening Temperature: 19°F
Cloudy. Windy at times.
Thursday, January 22nd, 2026
Overnight Temperature: 16°F
Clear with cloudy periods.
Morning Temperature: 26°F
Sunny. Windy at times.
Afternoon Temperature: 27°F
Sunny.
Evening Temperature: 29°F
A mix of cloudy and clear skies. Windy at times.
Friday, January 23rd, 2026
Overnight Temperature: 25°F
Cloudy.
Morning Temperature: 19°F
Cloudy. Windy at times.
Afternoon Temperature: 14°F
Mostly cloudy with a slight chance of flurries. Windy at times.
Evening Temperature: 9°F
A mix of cloudy and clear skies. Windy at times.
Saturday, January 24th, 2026
Overnight Temperature: 6°F
Cloudy. Windy at times.
Morning Temperature: 12°F
Cloudy with a slight chance of flurries. Windy at times.
Afternoon Temperature: 14°F
Cloudy with flurries likely. Windy at times.
Evening Temperature: 14°F
Cloudy with flurries likely.
Sunday, January 25th, 2026
Overnight Temperature: 11°F
Clear with cloudy periods.
Morning Temperature: 13°F
Cloudy. Windy at times.
Afternoon Temperature: 10°F
Cloudy.
Evening Temperature: 11°F
Cloudy.





 

  [ Local Weather Report ]
La Salle, IL 
3:59 PM  18°F
Overcast unknown precipitation
 
Oglesby, IL 
3:59 PM  18°F
Overcast unknown precipitation
 
Mendota, IL 
 
Ottawa, IL 
 
Princeton, IL 
 
Henry, IL 
 
Marseilles, IL 
 
Streator, IL 
 
Lacon, IL 
3:55 PM  16°F
Mostly Cloudy
 
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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