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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: 8:46 pm CST Dec 12, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
30% chance of freezing rain & snow on Tonight 90% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday
Low: 10°F High: 7 °F High: 7 °F High: 24°F High: 36°F High: 44°F High: 44°F High: 39°F
Low: -4°F Low: -3°F Low: 14°F Low: 28°F Low: 35°F Low: 21°F  
Freezing Rain & Snow Snow Sunny Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
PERU - (KVYS)
28°
Feels like 15°F
Cloudy
Mist
as of 9:35 PM CST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 5 Miles
Pressure: 30.10 in.
Flight Rule: MVFR
Wind Data
20 MPH
Gust: 25 MPH
270° West
Cloud Level(s): Solid Overcast at 1000ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
27°
Feels like 13°F
Cloudy
as of 9:35 PM CST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 7 Miles
Pressure: 30.08 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 22 MPH
270° West
Cloud Level(s): Solid Overcast at 1000ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
28°
Feels like 16°F
Cloudy
as of 9:35 PM CST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 7 Miles
Pressure: 30.11 in.
Flight Rule: MVFR
Wind Data
16 MPH
260° West
Cloud Level(s): Solid Overcast at 1400ft
30% chance of freezing rain & snow Tonight Tonight... Patchy freezing rain before 11pm, then a slight chance of snow between 11pm and midnight. Cloudy, with a low around 10. Wind chill values as low as -2. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

90% chance of snow Saturday Saturday... Snow, mainly after 9am. Temperature falling to around 7 by 4pm. Wind chill values as low as -8. Northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around -4. Wind chill values as low as -21. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Sunny on Sunday Sunday... Sunny and cold, with a high near 7. Wind chill values as low as -22. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -3. West wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 24.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 14.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 36.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 28.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 44.

20% chance of rain Wednesday Night Wednesday Night... A chance of rain. Mostly cloudy, with a low around 35.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 44.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 21.

Partly Sunny on Friday Friday... Partly sunny, with a high near 39.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:13 AM
Sunset: 4:27 PM
Civil Sunrise:06:42 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:34 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.