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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: 2:31 am CST Jan 12, 2026 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Partly Sunny on Today Cloudy on Tonight Partly Sunny on Tuesday 40% chance of snow on Wednesday Mostly Sunny on Thursday Snow on Friday 20% chance of snow on Saturday Partly Sunny on Sunday
High: 43°F Low: 33°F High: 49°F High: 35°F High: 26°F High: 34°F High: 20°F High: 18°F
Low: 34°F Low: 15°F Low: 22°F Low: 18°F Low: 5°F  
Partly Sunny Cloudy Partly Sunny Snow Mostly Sunny Snow Snow Partly Sunny
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Current Conditions at
PERU - (KVYS)
30°
Feels like 20°F
Clear
as of 5:39 AM CST
Rel. Humidity: 63%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
13 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
28°
Feels like 19°F
Clear
as of 5:35 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
28°
Feels like 19°F
Clear
as of 5:35 AM CST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
28°
Feels like 19°F
Clear
as of 5:35 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
9 MPH
Gust: 17 MPH
220° Southwest
Cloud Level(s): Clear
Partly Sunny on Today Today... Partly sunny, then gradually becoming sunny, with a high near 43. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 33. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 49. West wind around 15 mph, with gusts as high as 25 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34. West wind around 15 mph, with gusts as high as 25 mph.
40% chance of snow Wednesday Wednesday... A 40 percent chance of snow showers. Mostly cloudy, with a high near 35. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 15. Blustery.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 26.
20% chance of snow Thursday Night Thursday Night... A chance of snow. Mostly cloudy, with a low around 22.
Snow on Friday Friday... Scattered snow showers. Mostly cloudy, with a high near 34.
Snow on Friday Night Friday Night... Scattered snow showers, mainly before midnight. Mostly cloudy, with a low around 18.
20% chance of snow Saturday Saturday... A chance of snow showers. Mostly cloudy, with a high near 20.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 5.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 18.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:21 AM
Sunset: 4:48 PM
Civil Sunrise:06:50 AM
Civil Sunset: 5:19 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:26 PM
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