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Deer Park, Illinois Weather Forecast
Deer Park, Illinois Weather
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Weather Forecast for Deer Park, Illinois : LaSalle County
Issued: 8:16 pm CST Dec 9, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
90% chance of rain & snow on Tonight 90% chance of snow on Wednesday 30% chance of snow on Thursday 30% chance of snow on Friday Snow on Saturday Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
Low: 31°F High: 26 °F High: 24°F High: 27°F High: 12°F High: 5°F High: 22°F High: 27°F
Low: 15°F Low: 22°F Low: 8°F Low: -7°F Low: -5°F Low: 10°F  
Rain & Snow Snow Snow Snow Snow Sunny Partly Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
37°
Feels like 29°F
Cloudy
Rain
as of 7:55 PM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.49 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 17 MPH
180° South
Cloud Level(s): Scattered at 4100ft, Broken at 5500ft, Solid Overcast at 7500ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
36°
Feels like 28°F
Cloudy
Light Rain
as of 8:15 PM CST
Rel. Humidity: 93%
Dew Point: 34°F
Visibility: 7 Miles
Pressure: 29.48 in.
Flight Rule: VFR
Wind Data
10 MPH
190° South
Cloud Level(s): Broken at 4900ft, Solid Overcast at 5500ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
37°
Feels like 26°F
Cloudy
as of 7:55 PM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.51 in.
Flight Rule: VFR
Wind Data
23 MPH
Gust: 28 MPH
190° South
Cloud Level(s): Broken at 6500ft, Solid Overcast at 8500ft
90% chance of rain & snow Tonight Tonight... Rain before 5am, then a chance of snow. Low around 31. Breezy, with a south wind 20 to 25 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
90% chance of snow Wednesday Wednesday... Snow, mainly before noon. Temperature falling to around 26 by 5pm. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
20% chance of snow Wednesday Night Wednesday Night... A 20 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 15. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
30% chance of snow Thursday Thursday... A 30 percent chance of snow after noon. Partly sunny, with a high near 24. West northwest wind around 5 mph becoming south southeast in the afternoon. Winds could gust as high as 10 mph.
60% chance of snow Thursday Night Thursday Night... Snow likely. Cloudy, with a low around 22. Southeast wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
30% chance of snow Friday Friday... A 30 percent chance of snow. Mostly cloudy, with a high near 27.
20% chance of snow Friday Night Friday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 8.
Snow on Saturday Saturday... Snow likely, mainly after noon. Mostly cloudy, with a high near 12.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around -7.
Sunny on Sunday Sunday... Sunny and cold, with a high near 5.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -5.
Partly Sunny on Monday Monday... Partly sunny, with a high near 22.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 10.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 27.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:11 AM
Sunset: 4:27 PM
Civil Sunrise:06:39 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:31 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.