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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: 12:01 pm CST Nov 27, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Thanksgiving Day Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Cloudy on Thanksgiving Day Mostly Cloudy on Tonight Sunny on Friday 100% chance of snow on Saturday 40% chance of snow on Sunday Partly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday
High: 34°F Low: 21°F High: 32°F High: 31°F High: 28°F High: 17°F High: 21°F High: 30°F
  Low: 22°F Low: 25°F Low: 4°F Low: 6°F Low: 10°F  
Mostly Cloudy Mostly Cloudy Sunny Snow Snow Partly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
PERU - (KVYS)
34°
Feels like 22°F
Clear
as of 12:55 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 26 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
36°
Feels like 26°F
Clear
as of 12:55 PM CST
Rel. Humidity: 47%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 24 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
34°
Feels like 22°F
Partly Cloudy
as of 12:55 PM CST
Rel. Humidity: 59%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 26 MPH
300° Northwest
Cloud Level(s): Scattered at 3300ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
36°
Feels like 24°F
Clear
as of 12:55 PM CST
Rel. Humidity: 51%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 26 MPH
290° West
Cloud Level(s): Clear
Mostly Cloudy on Thanksgiving Day Thanksgiving Day... Mostly cloudy, with a high near 34. West northwest wind around 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 21. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunny on Friday Friday... Sunny, with a high near 32. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 15 mph.

70% chance of snow Friday Night Friday Night... Snow likely after midnight. Increasing clouds, with a low around 22. Light and variable wind becoming east southeast 5 to 10 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

100% chance of snow Saturday Saturday... Snow. The snow could be heavy at times. High near 31. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

100% chance of snow Saturday Night Saturday Night... Snow. Low around 25. Chance of precipitation is 100%.

40% chance of snow Sunday Sunday... A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 28.

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

Partly Sunny on Monday Monday... Partly sunny, with a high near 17.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 6.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 21.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 10.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 30.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 06:59 AM
Sunset: 4:29 PM
Civil Sunrise:06:28 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 05:54 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:21 AM
Astro Sunset: 6:07 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.