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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: 1:41 pm CST Jan 14, 2026 Latitude: 41.2950348 Longitude: -89.0361928 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday M.L.King Day Tuesday
20% chance of snow on This Afternoon Mostly Clear on Tonight Increasing Clouds on Thursday 30% chance of snow on Friday Mostly Cloudy on Saturday Partly Sunny on Sunday Partly Sunny on M.L.King Day Mostly Sunny on Tuesday
High: 24°F Low: 14°F High: 26°F High: 37°F High: 16°F High: 17°F High: 14°F High: 20°F
Low: 24°F Low: 13°F Low: 5°F Low: 7°F Low: 3°F  
Snow Mostly Clear Increasing Clouds Snow Mostly Cloudy Partly Sunny Partly Sunny Mostly Sunny
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20% chance of snow This Afternoon This Afternoon... Isolated snow showers before 3pm. Mostly sunny, with a steady temperature around 24. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 14. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 26. North northwest wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

80% chance of snow Thursday Night Thursday Night... Snow. Low around 24. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

30% chance of snow Friday Friday... A 30 percent chance of snow showers after noon. Mostly cloudy, with a high near 37. Breezy, with a west wind 15 to 20 mph, with gusts as high as 25 mph.

30% chance of snow Friday Night Friday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 13.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 16.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 5.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 17.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 7.

Partly Sunny on M.L.King Day M.L.King Day... Partly sunny, with a high near 14.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 3.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 20.

Sun Almanac for Deer Park, Illinois
Sunrise: 07:20 AM
Sunset: 4:51 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:55 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:28 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.