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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: 12:10 pm CST Jan 24, 2026 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday
40% chance of snow on This Afternoon 70% chance of snow on Tonight 50% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday 20% chance of snow on Wednesday Sunny on Thursday Mostly Sunny on Friday
High: 8 °F Low: 6 °F High: 15°F High: 11°F High: 23°F High: 16°F High: 16°F High: 20°F
Low: -1°F Low: 5°F Low: 3°F Low: 2°F Low: 4°F  
Snow Snow Snow Sunny Mostly Sunny Snow Sunny Mostly Sunny
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Current Conditions at
PERU - (KVYS)
3°
Cloudy
as of 1:01 PM CST
Rel. Humidity: 38%
Dew Point: -17°F
Visibility: 10 Miles
Pressure: 30.60 in.
Flight Rule: VFR
Wind Data
6 MPH
030° Northeast
Cloud Level(s): Broken at 5000ft, Solid Overcast at 6000ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
1°
Cloudy
Light Snow
as of 12:55 PM CST
Rel. Humidity: 59%
Dew Point: -9°F
Visibility: 3 Miles
Pressure: 30.60 in.
Flight Rule: MVFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 3600ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
3°
Cloudy
as of 12:55 PM CST
Rel. Humidity: 38%
Dew Point: -17°F
Visibility: 10 Miles
Pressure: 30.60 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 3800ft, Solid Overcast at 4700ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
7°
Feels like -6°F
Cloudy
as of 12:55 PM CST
Rel. Humidity: 46%
Dew Point: -9°F
Visibility: 10 Miles
Pressure: 30.59 in.
Flight Rule: VFR
Wind Data
9 MPH
060° Northeast
Cloud Level(s): Broken at 8000ft, Solid Overcast at 9000ft
40% chance of snow This Afternoon This Afternoon... A 40 percent chance of snow, mainly after 4pm. Cloudy and cold, with a high near 8. Wind chill values as low as -5. East wind around 5 mph.
70% chance of snow Tonight Tonight... Snow likely, mainly after 8pm. Cloudy, with a low around 6. Wind chill values as low as -6. Northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
50% chance of snow Sunday Sunday... A 50 percent chance of snow. Cloudy, with a high near 15. Wind chill values as low as -8. North wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -18. Northwest wind around 15 mph, with gusts as high as 20 mph.
Sunny on Monday Monday... Sunny, with a high near 11. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 5.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 23.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 3.
20% chance of snow Wednesday Wednesday... A chance of snow after noon. Partly sunny, with a high near 16.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 2.
Sunny on Thursday Thursday... Sunny, with a high near 16.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 4.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 20.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:14 AM
Sunset: 5:02 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 6:06 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:39 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.