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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: 8:26 am CST Nov 20, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Morning Fog on Today Cloudy on Tonight 30% chance of rain on Friday Sunny on Saturday Sunny on Sunday 20% chance of rain on Monday 20% chance of rain on Tuesday Partly Sunny on Wednesday
High: 50°F Low: 44°F High: 53°F High: 51°F High: 58°F High: 54°F High: 54°F High: 43°F
Low: 32°F Low: 37°F Low: 36°F Low: 43°F Low: 35°F  
Morning Fog Cloudy Rain Sunny Sunny Rain Rain Partly Sunny
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Current Conditions at
PERU - (KVYS)
45°
Cloudy
Mist
as of 8:15 AM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 2 Miles
Pressure: 30.09 in.
Flight Rule: IFR
Wind Data
7 MPH
160° South
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
45°
Cloudy
Mist
as of 8:15 AM CST
Rel. Humidity: 87%
Dew Point: 41°F
Visibility: 4 Miles
Pressure: 30.08 in.
Flight Rule: IFR
Wind Data
7 MPH
160° South
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
45°
Cloudy
Mist
as of 8:15 AM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 1 1/4 Miles
Pressure: 30.09 in.
Flight Rule: LIFR
Wind Data
7 MPH
160° South
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
45°
Cloudy
Mist
as of 8:15 AM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 2 Miles
Pressure: 30.11 in.
Flight Rule: LIFR
Wind Data
8 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 400ft
Morning Fog on Today Today... Patchy drizzle and fog before 10am. Cloudy, with a high near 50. South wind around 5 mph becoming calm in the afternoon.

Cloudy on Tonight Tonight... Cloudy, with a low around 44. Calm wind becoming north northeast around 5 mph.

30% chance of rain Friday Friday... A 30 percent chance of rain, mainly after noon. Cloudy, with a high near 53. North northeast wind 5 to 10 mph.

20% chance of rain Friday Night Friday Night... A 20 percent chance of rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 32. North northeast wind around 5 mph, with gusts as high as 10 mph.

Sunny on Saturday Saturday... Sunny, with a high near 51. North northeast wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 10 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 37.

Sunny on Sunday Sunday... Sunny, with a high near 58.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 36.

20% chance of rain Monday Monday... A chance of rain after noon. Partly sunny, with a high near 54.

70% chance of rain Monday Night Monday Night... Rain likely, mainly after midnight. Mostly cloudy, with a low around 43.

20% chance of rain Tuesday Tuesday... A chance of rain. Mostly cloudy, with a high near 54.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 35.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 43.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 06:51 AM
Sunset: 4:33 PM
Civil Sunrise:06:21 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 5:37 PM
Astro Sunrise: 05:14 AM
Astro Sunset: 6:09 PM
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