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Knollwood, Illinois Weather Forecast
Knollwood, Illinois Weather
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Weather Forecast for Knollwood, Illinois : Lake County
Issued: 8:51 pm CST Dec 18, 2025 Latitude: 42.2861339 Longitude: -87.8856275 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
20% chance of snow on Tonight Mostly Cloudy on Friday Mostly Cloudy on Saturday Sunny on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Cloudy on Christmas Day
Low: 11°F High: 24°F High: 40°F High: 27°F High: 39°F High: 45°F High: 45°F High: 48°F
Low: 29 °F Low: 15°F Low: 19°F Low: 34°F Low: 33°F Low: 39°F  
Snow Mostly Cloudy Mostly Cloudy Sunny Mostly Cloudy Partly Sunny Mostly Cloudy Mostly Cloudy
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Current Conditions at
WAUKEGAN - (KUGN)
19°
Feels like 4°F
Cloudy
as of 10:51 PM CST
Rel. Humidity: 62%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.45 in.
Flight Rule: MVFR
Wind Data
16 MPH
Gust: 30 MPH
270° West
Cloud Level(s): Solid Overcast at 2700ft
Current Conditions at
CHICAGO/WHEELING - (KPWK)
19°
Feels like 3°F
Cloudy
Light Snow
as of 10:52 PM CST
Rel. Humidity: 67%
Dew Point: 10°F
Visibility: 9 Miles
Pressure: 29.50 in.
Flight Rule: MVFR
Wind Data
20 MPH
Gust: 30 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 2800ft
Current Conditions at
CHICAGO-OHARE - (KORD)
19°
Feels like 4°F
Mostly Cloudy
Light Snow
as of 10:51 PM CST
Rel. Humidity: 62%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.50 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 36 MPH
280° West
Cloud Level(s): Broken at 2800ft
20% chance of snow Tonight Tonight... Flurries with isolated snow showers. Cloudy, with a low around 11. Wind chill values as low as -3. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

Mostly Cloudy on Friday Friday... Mostly cloudy, then gradually becoming sunny, with a high near 24. Wind chill values as low as -7. Blustery, with a west northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 35 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a temperature rising to around 29 by 5am. South wind 5 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 40. South southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 15. West northwest wind around 15 mph, with gusts as high as 25 mph.

Sunny on Sunday Sunday... Sunny, with a high near 27.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 19.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 39.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 34.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 45.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 33.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 45.

20% chance of rain Wednesday Night Wednesday Night... A chance of rain. Mostly cloudy, with a low around 39.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 48.

Sun Almanac for Knollwood, Illinois
Sunrise: 07:16 AM
Sunset: 4:21 PM
Civil Sunrise:06:44 AM
Civil Sunset: 4:53 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:29 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:03 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.