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Peru, Illinois Weather Forecast
Peru, Illinois Weather
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Weather Forecast for Peru, Illinois : LaSalle County
Issued: 11:06 am CST Dec 1, 2025 Latitude: 41.3275349 Longitude: -89.1289728 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
100% chance of snow on Today 100% chance of snow on Tonight Partly Sunny on Tuesday 40% chance of snow on Wednesday Sunny on Thursday Partly Sunny on Friday Mostly Cloudy on Saturday Mostly Cloudy on Sunday
High: 27°F Low: 14°F High: 23°F High: 33°F High: 10°F High: 24°F High: 29°F High: 27°F
Low: 17°F Low: -2°F Low: -6°F Low: 15°F Low: 17°F  
Snow Snow Partly Sunny Snow Sunny Partly Sunny Mostly Cloudy Mostly Cloudy
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Current Conditions at
PERU - (KVYS)
27°
Cloudy
as of 10:55 AM CST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: MVFR
Wind Data
3 MPH
100° East
Cloud Level(s): Broken at 2900ft, Solid Overcast at 10000ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
27°
Clear
as of 10:55 AM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
3 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
23°
Clear
Mist
as of 10:55 AM CST
Rel. Humidity: 100%
Dew Point: 23°F
Visibility: 2 Miles
Pressure: 30.34 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
23°
Partly Cloudy
Mist
as of 10:55 AM CST
Rel. Humidity: 92%
Dew Point: 21°F
Visibility: 5 Miles
Pressure: 30.32 in.
Flight Rule: MVFR
Wind Data
5 MPH
110° East
Cloud Level(s): Scattered at 11000ft
100% chance of snow Today Today... A chance of snow with intermittent flurries between noon and 1pm, then snow after 1pm. High near 27. South southeast wind around 5 mph becoming calm. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 3 inches possible.

100% chance of snow Tonight Tonight... Snow, mainly before 11pm. Low around 14. Calm wind becoming west northwest around 5 mph in the evening. Winds could gust as high as 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 23. West northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 17. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

40% chance of snow Wednesday Wednesday... A 40 percent chance of snow after noon. Cloudy, with a high near 33. South southwest wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

20% chance of snow Wednesday Night Wednesday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -2.

Sunny on Thursday Thursday... Sunny and cold, with a high near 10.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around -6.

Partly Sunny on Friday Friday... Partly sunny, with a high near 24.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 15.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 29.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 17.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 27.

Current Radar Image


Sun Almanac for Peru, Illinois
Sunrise: 07:04 AM
Sunset: 4:28 PM
Civil Sunrise:06:33 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 05:58 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:25 AM
Astro Sunset: 6:06 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.