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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: 6:36 am CST Dec 10, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
100% chance of rain & snow on Today 20% chance of snow on Tonight 30% chance of snow on Thursday 30% chance of snow on Friday 60% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday
High: 28 °F Low: 16°F High: 25°F High: 27°F High: 11°F High: 4°F High: 22°F High: 33°F
Low: 20°F Low: 4°F Low: -6°F Low: -6°F Low: 13°F  
Rain & Snow Snow Snow Snow Snow Sunny Mostly Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
34°
Feels like 22°F
Cloudy
Light Drizzle
as of 8:35 AM CST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 2 1/2 Miles
Pressure: 29.54 in.
Flight Rule: IFR
Wind Data
20 MPH
Gust: 28 MPH
330° Northwest
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
34°
Feels like 23°F
Cloudy
as of 8:35 AM CST
Rel. Humidity: 100%
Dew Point: 34°F
Visibility: 7 Miles
Pressure: 29.48 in.
Flight Rule: IFR
Wind Data
16 MPH
Gust: 22 MPH
330° Northwest
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
36°
Feels like 23°F
Cloudy
as of 8:35 AM CST
Rel. Humidity: 86%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.51 in.
Flight Rule: MVFR
Wind Data
24 MPH
Gust: 29 MPH
290° West
Cloud Level(s): Solid Overcast at 2100ft
100% chance of rain & snow Today Today... Rain and snow showers, becoming all snow after 9am. Temperature falling to around 28 by 5pm. Breezy, with a north northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

20% chance of snow Tonight Tonight... A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 16. 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 3pm. Mostly cloudy, with a high near 25. West northwest wind around 5 mph becoming south southeast in the afternoon. Winds could gust as high as 10 mph.

80% chance of snow Thursday Night Thursday Night... Snow. The snow could be heavy at times. Low around 20. South southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

30% chance of snow Friday Friday... A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 27. Northeast wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 4.

60% chance of snow Saturday Saturday... Snow likely, mainly after noon. Mostly cloudy, with a high near 11. Chance of precipitation is 60%.

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

Sunny on Sunday Sunday... Sunny and cold, with a high near 4.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -6.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 22.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 13.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 33.

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.