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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 am CST Dec 19, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

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Overnight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
Flurries on Overnight Mostly Sunny on Friday Partly Sunny on Saturday Sunny on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Christmas Day
Low: 11°F High: 24°F High: 42°F High: 30°F High: 39°F High: 48°F High: 52°F High: 58°F
Low: 30 °F Low: 17°F Low: 23°F Low: 35°F Low: 34°F Low: 46°F  
Flurries Mostly Sunny Partly Sunny Sunny Mostly Cloudy Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
PERU - (KVYS)
12°
Feels like -7°F
Cloudy
as of 4:15 AM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: MVFR
Wind Data
24 MPH
Gust: 38 MPH
280° West
Cloud Level(s): Solid Overcast at 2700ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
12°
Feels like -3°F
Mostly Cloudy
as of 4:15 AM CST
Rel. Humidity: 72%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
15 MPH
Gust: 26 MPH
290° West
Cloud Level(s): Broken at 2700ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
12°
Feels like -8°F
Mostly Cloudy
as of 4:15 AM CST
Rel. Humidity: 72%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: MVFR
Wind Data
28 MPH
Gust: 37 MPH
290° West
Cloud Level(s): Broken at 2500ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
14°
Feels like -6°F
Mostly Cloudy
as of 4:15 AM CST
Rel. Humidity: 66%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: MVFR
Wind Data
30 MPH
Gust: 43 MPH
280° West
Cloud Level(s): Broken at 2200ft
Flurries on Overnight Overnight... Isolated flurries before 5am. Mostly cloudy, with a low around 11. Wind chill values as low as -7. Blustery, with a west northwest wind around 20 mph, with gusts as high as 35 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 24. Wind chill values as low as -8. Blustery, with a west northwest wind 15 to 20 mph becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 35 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a temperature rising to around 30 by 5am. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 42. South wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 17. West wind 10 to 15 mph, with gusts as high as 25 mph.

Sunny on Sunday Sunday... Sunny, with a high near 30.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 23.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 39.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 35.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 48.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 52.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 46.

Partly Sunny on Christmas Day Christmas Day... Partly sunny, with a high near 58.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:18 AM
Sunset: 4:29 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:09 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.