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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: 5:36 am CST Dec 12, 2025 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Morning Fog on Today Cloudy on Tonight 90% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday 20% chance of rain on Thursday
High: 28°F Low: 8 °F High: 30°F High: 6 °F High: 23°F High: 36°F High: 44°F High: 44°F
Low: -6°F Low: -4°F Low: 14°F Low: 30°F Low: 35°F  
Morning Fog Cloudy Snow Sunny Mostly Sunny Partly Sunny Partly Sunny Rain
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Current Conditions at
PERU - (KVYS)
23°
Cloudy
as of 6:35 AM CST
Rel. Humidity: 85%
Dew Point: 19°F
Visibility: 7 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 500ft, Solid Overcast at 3500ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
18°
Clear
Mist
as of 6:37 AM CST
Rel. Humidity: 92%
Dew Point: 16°F
Visibility: 4 Miles
Pressure: 30.10 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
16°
Cloudy
Freezing Fog
as of 6:35 AM CST
Rel. Humidity: 100%
Dew Point: 16°F
Visibility: 1/4 Miles
Pressure: 30.10 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 100ft
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
18°
Cloudy
as of 6:35 AM CST
Rel. Humidity: 85%
Dew Point: 14°F
Visibility: 7 Miles
Pressure: 30.10 in.
Flight Rule: MVFR
Wind Data
6 MPH
030° Northeast
Cloud Level(s): Broken at 2000ft, Solid Overcast at 4400ft
Morning Fog on Today Today... Patchy fog before 8am. Otherwise, increasing clouds, with a high near 28. Northeast wind 5 to 10 mph becoming west in the afternoon.

Cloudy on Tonight Tonight... Cloudy, with a low around 8. Wind chill values as low as -5. West wind 10 to 15 mph, with gusts as high as 20 mph.

90% chance of snow Saturday Saturday... Snow, mainly after 9am. Steady temperature around 9. Wind chill values as low as -6. Northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around -6. Wind chill values as low as -24. Northwest wind around 10 mph, with gusts as high as 20 mph.

Sunny on Sunday Sunday... Sunny and cold, with a high near 6. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -4.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 23.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 14.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 36.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 30.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 44.

20% chance of rain Wednesday Night Wednesday Night... A chance of rain. Mostly cloudy, with a low around 35.

20% chance of rain Thursday Thursday... A chance of rain. Partly sunny, with a high near 44.

Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:13 AM
Sunset: 4:27 PM
Civil Sunrise:06:42 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:07 PM
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