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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: 11:56 am CST Nov 28, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on This Afternoon 100% chance of snow on Tonight 100% chance of snow on Saturday 30% chance of snow on Sunday 20% chance of snow on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Thursday
High: 32°F Low: 26°F High: 31°F High: 28°F High: 18°F High: 22°F High: 30°F High: 22°F
Low: 25°F Low: 4°F Low: 8°F Low: 14°F Low: 12°F  
Mostly Sunny Snow Snow Snow Snow Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
PERU - (KVYS)
30°
Feels like 21°F
Mostly Cloudy
as of 11:55 AM CST
Rel. Humidity: 50%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: VFR
Wind Data
9 MPH
320° Northwest
Cloud Level(s): Broken at 3500ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
30°
Clear
as of 11:55 AM CST
Rel. Humidity: 42%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
3 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
30°
Feels like 19°F
Partly Cloudy
as of 11:55 AM CST
Rel. Humidity: 58%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
14 MPH
300° Northwest
Cloud Level(s): Scattered at 3200ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
30°
Mostly Cloudy
as of 11:55 AM CST
Rel. Humidity: 46%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
5 MPH
320° Northwest
Cloud Level(s): Broken at 3500ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 32. West northwest wind 5 to 10 mph becoming light west.
100% chance of snow Tonight Tonight... Snow, mainly after 2am. Steady temperature around 26. Light and variable wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 100%. 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. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
100% chance of snow Saturday Night Saturday Night... Snow. Low around 25. Blustery, with a south wind 10 to 15 mph becoming west northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Mostly cloudy, with a high near 28. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 4.
20% chance of snow Monday Monday... A 20 percent chance of snow after noon. Mostly cloudy, with a high near 18.
20% chance of snow Monday Night Monday Night... A chance of snow before midnight. Mostly cloudy, with a low around 8.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 22.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 14.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 30.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 12.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 22.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:00 AM
Sunset: 4:29 PM
Civil Sunrise:06:29 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 05:55 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:22 AM
Astro Sunset: 6:07 PM
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