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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: 3:11 pm CST Jan 22, 2026 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
20% chance of snow on This Afternoon 20% chance of snow on Tonight Mostly Sunny on Friday 50% chance of snow on Saturday 50% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday
High: 28°F Low: -8°F High: 2 °F High: 9 °F High: 15°F High: 13°F High: 21°F High: 17°F High: 11°F
Low: -4°F Low: 6 °F Low: -2°F Low: 4°F Low: 7°F Low: 1°F  
Snow Snow Mostly Sunny Snow Snow Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
PERU - (KVYS)
23°
Feels like 7°F
Clear
as of 4:40 PM CST
Rel. Humidity: 38%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 30 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
25°
Feels like 13°F
Cloudy
as of 4:35 PM CST
Rel. Humidity: 32%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 18 MPH
310° Northwest
Cloud Level(s): Solid Overcast at 12000ft
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
23°
Feels like 8°F
Clear
as of 4:35 PM CST
Rel. Humidity: 38%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
18 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
27°
Feels like 15°F
Clear
as of 4:35 PM CST
Rel. Humidity: 32%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 21 MPH
290° West
Cloud Level(s): Clear
20% chance of snow This Afternoon This Afternoon... A chance of flurries after 5pm. Partly sunny, with a high near 28. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
20% chance of snow Tonight Tonight... A chance of flurries. Partly cloudy, with a low around -8. Wind chill values as low as -27. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly Sunny on Friday Friday... Mostly sunny and cold, with a high near 2. Wind chill values as low as -30. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Increasing Clouds on Friday Night Friday Night... Increasing clouds, with a low around -4. Wind chill values as low as -16. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
50% chance of snow Saturday Saturday... A 50 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 9. East northeast wind around 5 mph, with gusts as high as 15 mph.
60% chance of snow Saturday Night Saturday Night... Snow likely. Cloudy, with a low around 6. Chance of precipitation is 60%.
50% chance of snow Sunday Sunday... A 50 percent chance of snow. Mostly cloudy, with a high near 15.
20% chance of snow Sunday Night Sunday Night... A chance of snow before midnight. Mostly cloudy, with a low around -2.
Sunny on Monday Monday... Sunny, with a high near 13.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 4.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 21.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 7.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 17.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 1.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 11.
Current Radar Image


Sun Almanac for Deer Park, Illinois
Sunrise: 07:16 AM
Sunset: 5:00 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:30 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 6:04 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:36 PM
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