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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: 3:11 pm CST Dec 10, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
60% chance of snow on Tonight 40% chance of snow on Thursday 20% chance of snow on Friday 70% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday
Low: 21°F High: 27°F High: 27°F High: 10°F High: 5°F High: 23°F High: 31°F High: 37°F
Low: 22°F Low: 8 °F Low: -7°F Low: -5°F Low: 15°F Low: 27°F  
Snow Snow Snow Snow Sunny Mostly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
PERU - (KVYS)
32°
Feels like 22°F
Cloudy
as of 3:35 PM CST
Rel. Humidity: 68%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 24 MPH
310° Northwest
Cloud Level(s): Scattered at 2800ft, Solid Overcast at 3300ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
30°
Feels like 18°F
Cloudy
as of 3:35 PM CST
Rel. Humidity: 80%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 21 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 4200ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
32°
Feels like 21°F
Cloudy
as of 3:35 PM CST
Rel. Humidity: 68%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: MVFR
Wind Data
16 MPH
Gust: 25 MPH
310° Northwest
Cloud Level(s): Broken at 3000ft, Solid Overcast at 3500ft
60% chance of snow Tonight Tonight... Snow likely before midnight, then a chance of snow or flurries between midnight and 3am, then a chance of flurries after 3am. Cloudy, with a low around 21. West northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
40% chance of snow Thursday Thursday... A 40 percent chance of snow after 3pm. Mostly cloudy, with a high near 27. West northwest wind around 5 mph becoming south southeast in the afternoon.
80% chance of snow Thursday Night Thursday Night... Snow, mainly before midnight. Low around 22. Southeast wind around 5 mph becoming northeast after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
20% chance of snow Friday Friday... A 20 percent chance of snow before noon. Mostly cloudy, with a high near 27. North northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 8. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
70% chance of snow Saturday Saturday... Snow likely. Mostly cloudy and cold, with a high near 10. Chance of precipitation is 70%.
20% chance of snow Saturday Night Saturday Night... A 20 percent chance of snow before midnight. Partly cloudy, with a low around -7.
Sunny on Sunday Sunday... Sunny and cold, with a high near 5.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -5.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 23.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 15.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 31.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 27.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 37.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:11 AM
Sunset: 4:27 PM
Civil Sunrise:06:40 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:32 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.