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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: 7:31 pm CST Nov 21, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thanksgiving Day Friday
30% chance of rain on Tonight Sunny on Saturday Sunny on Sunday 40% chance of rain on Monday 20% chance of rain on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday
Low: 32°F High: 52°F High: 55°F High: 55°F High: 56°F High: 42°F High: 38°F High: 36°F
Low: 34°F Low: 36°F Low: 47°F Low: 31°F Low: 25°F Low: 21°F  
Rain Sunny Sunny Rain Rain Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
PERU - (KVYS)
45°
Cloudy
as of 8:35 PM CST
Rel. Humidity: 81%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
3 MPH
350° North
Cloud Level(s): Solid Overcast at 6500ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
43°
Cloudy
Light Rain
as of 8:35 PM CST
Rel. Humidity: 93%
Dew Point: 41°F
Visibility: 7 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
0° North
Cloud Level(s): Solid Overcast at 7000ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
43°
Cloudy
Light Rain
as of 8:35 PM CST
Rel. Humidity: 93%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 5000ft, Solid Overcast at 7000ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
45°
Cloudy
as of 8:35 PM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 4 Miles
Pressure: 30.00 in.
Flight Rule: MVFR
Wind Data
7 MPH
010° North
Cloud Level(s): Solid Overcast at 6000ft
30% chance of rain Tonight Tonight... A 30 percent chance of rain, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 32. North northeast wind around 5 mph.

Sunny on Saturday Saturday... Sunny, with a high near 52. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 34. Southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.

Sunny on Sunday Sunday... Sunny, with a high near 55. West northwest wind around 5 mph becoming south in the afternoon.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 36. Calm wind becoming south southeast around 5 mph after midnight. Winds could gust as high as 10 mph.

40% chance of rain Monday Monday... A 40 percent chance of rain after noon. Mostly cloudy, with a high near 55.

90% chance of rain Monday Night Monday Night... Rain. Low around 47. Chance of precipitation is 90%.

20% chance of rain Tuesday Tuesday... A chance of rain. Mostly cloudy, with a high near 56.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 31.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 42.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 25.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 38.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 21.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 36.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 06:52 AM
Sunset: 4:32 PM
Civil Sunrise:06:22 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 05:48 AM
Nautical Sunset: 5:36 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 6:09 PM
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