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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: 12:16 am CST Dec 5, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

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Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Fog on Overnight Morning Fog on Friday Partly Sunny on Saturday 40% chance of snow on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday 20% chance of rain & snow on Wednesday Partly Sunny on Thursday
Low: -5°F High: 30°F High: 28°F High: 24°F High: 21°F High: 32°F High: 34°F High: 23°F
Low: 28°F Low: 19°F Low: 1°F Low: 14°F Low: 23°F Low: 11°F  
Fog Morning Fog Partly Sunny Snow Partly Sunny Mostly Cloudy Rain & Snow Partly Sunny
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Current Conditions at
PERU - (KVYS)
-0°
Clear
as of 1:15 AM CST
Rel. Humidity: 84%
Dew Point: -4°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
-2°
Clear
as of 1:15 AM CST
Rel. Humidity: 77%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
-0°
Clear
as of 1:35 AM CST
Rel. Humidity: 84%
Dew Point: -4°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
5 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
-6°
Clear
as of 1:15 AM CST
Rel. Humidity: 83%
Dew Point: -9°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
5 MPH
140° Southeast
Cloud Level(s): Clear
Fog on Overnight Overnight... Patchy freezing fog. Mostly cloudy, with a low around -5. Wind chill values as low as -14. South wind around 5 mph, with gusts as high as 10 mph.
Morning Fog on Friday Friday... Patchy freezing fog before 9am. Mostly sunny, with a high near 30. Wind chill values as low as -5. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
30% chance of freezing rain Friday Night Friday Night... Patchy freezing rain before midnight. Mostly cloudy, with a steady temperature around 28. South southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 28. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.
60% chance of snow Saturday Night Saturday Night... Snow likely, mainly after midnight. Cloudy, with a low around 19. Calm wind becoming east northeast around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
40% chance of snow Sunday Sunday... A 40 percent chance of snow before noon. Partly sunny, with a high near 24.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 1.
Partly Sunny on Monday Monday... Partly sunny, with a high near 21.
20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 14.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 32.
20% chance of snow Tuesday Night Tuesday Night... A chance of snow. Cloudy, with a low around 23.
20% chance of rain & snow Wednesday Wednesday... A chance of rain and snow. Mostly cloudy, with a high near 34.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 11.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 23.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:07 AM
Sunset: 4:27 PM
Civil Sunrise:06:36 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:28 AM
Astro Sunset: 6:06 PM
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