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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: 8:41 pm CST Nov 22, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thanksgiving Day Friday Saturday
Mostly Clear on Tonight Sunny on Sunday 20% chance of rain on Monday 30% chance of rain on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday 20% chance of rain & snow on Saturday
Low: 34°F High: 53°F High: 56°F High: 57°F High: 38°F High: 35°F High: 33°F High: 38°F
Low: 33°F Low: 46°F Low: 33°F Low: 24°F Low: 20°F Low: 21°F  
Mostly Clear Sunny Rain Rain Partly Sunny Mostly Sunny Mostly Sunny Rain & Snow
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Current Conditions at
PERU - (KVYS)
46°
Feels like 41°F
Clear
as of 8:35 PM CST
Rel. Humidity: 70%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
9 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
46°
Clear
as of 8:35 PM CST
Rel. Humidity: 70%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
8 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
45°
Feels like 39°F
Clear
as of 8:35 PM CST
Rel. Humidity: 87%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
9 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
46°
Feels like 40°F
Mostly Cloudy
as of 8:35 PM CST
Rel. Humidity: 81%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 18 MPH
240° Southwest
Cloud Level(s): Broken at 7500ft, Broken at 9000ft
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 34. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

Sunny on Sunday Sunday... Sunny, with a high near 53. West northwest wind around 5 mph, with gusts as high as 10 mph.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 33. Calm wind becoming south southeast around 5 mph after midnight. Winds could gust as high as 10 mph.

20% chance of rain Monday Monday... A 20 percent chance of showers after noon. Mostly cloudy, with a high near 56. South wind 5 to 10 mph, with gusts as high as 20 mph.

90% chance of rain Monday Night Monday Night... Rain. Low around 46. South southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

30% chance of rain Tuesday Tuesday... A slight chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.

20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 33.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 38. Breezy.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 24.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 35.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 20.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 33.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 21.

20% chance of rain & snow Saturday Saturday... A chance of rain and snow. Mostly cloudy, with a high near 38.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 06:53 AM
Sunset: 4:32 PM
Civil Sunrise:06:23 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 05:49 AM
Nautical Sunset: 5:36 PM
Astro Sunrise: 05:16 AM
Astro Sunset: 6:09 PM
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