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Knollwood, Illinois Weather Forecast
Knollwood, Illinois Weather
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Weather Forecast for Knollwood, Illinois : Lake County
Issued: 4:51 am CST Dec 27, 2025 Latitude: 42.2861339 Longitude: -87.8856275 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday New Year's Day Friday
Cloudy on Today 60% chance of rain on Tonight 100% chance of rain on Sunday 60% chance of snow on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on New Year's Day Sunny on Friday
High: 42°F Low: 44 °F High: 56°F High: 25°F High: 28°F High: 30°F High: 17°F High: 20°F
Low: 19°F Low: 13°F Low: 21°F Low: 10°F Low: 5°F  
Cloudy Rain Rain Snow Partly Sunny Mostly Cloudy Mostly Sunny Sunny
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Current Conditions at
WAUKEGAN - (KUGN)
36°
Cloudy
as of 5:06 AM CST
Rel. Humidity: 93%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
CHICAGO/WHEELING - (KPWK)
37°
Cloudy
as of 4:52 AM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
CHICAGO-OHARE - (KORD)
37°
Cloudy
as of 4:51 AM CST
Rel. Humidity: 86%
Dew Point: 34°F
Visibility: 7 Miles
Pressure: 29.99 in.
Flight Rule: IFR
Wind Data
5 MPH
100° East
Cloud Level(s): Solid Overcast at 900ft
Cloudy on Today Today... Cloudy, with a high near 42. Southeast wind 5 to 10 mph.

60% chance of rain Tonight Tonight... Showers likely, mainly after 3am. Patchy fog. Otherwise, cloudy, with a temperature rising to around 44 by midnight. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

100% chance of rain Sunday Sunday... Showers. Patchy fog before noon. High near 56. South southeast wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

70% chance of rain & snow Sunday Night Sunday Night... Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then a chance of snow showers after midnight. Cloudy, with a low around 19. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

60% chance of snow Monday Monday... Snow showers likely, mainly before noon. Mostly cloudy, with a high near 25. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 13. Blustery.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 28.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 21.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 30.

20% chance of snow Wednesday Night Wednesday Night... A chance of snow before midnight. Mostly cloudy, with a low around 10.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 17.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 5.

Sunny on Friday Friday... Sunny, with a high near 20.

Sun Almanac for Knollwood, Illinois
Sunrise: 07:20 AM
Sunset: 4:26 PM
Civil Sunrise:06:48 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:07 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.