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Knollwood, Illinois Weather Forecast
Knollwood, Illinois Weather
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Weather Forecast for Knollwood, Illinois : Lake County
Issued: 5:21 am CST Jan 18, 2026 Latitude: 42.2861339 Longitude: -87.8856275 View on Google Maps

MouseOver for Detail Forecast
Today Tonight M.L.King Day Tuesday Wednesday Thursday Friday Saturday
70% chance of snow on Today 90% chance of snow on Tonight Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday 30% chance of snow on Wednesday Mostly Sunny on Thursday 20% chance of snow on Friday 20% chance of snow on Saturday
High: 18°F Low: 2 °F High: 8 °F High: 20°F High: 28°F High: 19°F High: 26°F High: 15°F
Low: 1 °F Low: 14°F Low: 10°F Low: 12°F Low: 8°F  
Snow Snow Mostly Sunny Mostly Sunny Snow Mostly Sunny Snow Snow
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Current Conditions at
WAUKEGAN - (KUGN)
Feels like -10°F
Cloudy
as of 5:51 AM CST
Rel. Humidity: 71%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 29 MPH
240° Southwest
Cloud Level(s): Few at 1000ft, Solid Overcast at 10000ft
Current Conditions at
CHICAGO/WHEELING - (KPWK)
Feels like -7°F
Cloudy
as of 6:23 AM CST
Rel. Humidity: 71%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
14 MPH
250° West
Cloud Level(s): Scattered at 1400ft, Solid Overcast at 10000ft
Current Conditions at
CHICAGO-OHARE - (KORD)
Feels like -7°F
Cloudy
as of 5:51 AM CST
Rel. Humidity: 60%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 24 MPH
250° West
Cloud Level(s): Few at 1800ft, Solid Overcast at 10000ft
70% chance of snow Today Today... Snow likely, mainly after 4pm. Mostly cloudy, with a high near 18. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

90% chance of snow Tonight Tonight... Snow, mainly before 11pm. Low around 2. Wind chill values as low as -17. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph.

Mostly Clear on Monday Night Monday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 1. Wind chill values as low as -12. West wind 10 to 15 mph, with gusts as high as 20 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 20. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

40% chance of snow Tuesday Night Tuesday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 14.

30% chance of snow Wednesday Wednesday... A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 28.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 10.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 19.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 12.

20% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 26.

20% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 8.

20% chance of snow Saturday Saturday... A chance of snow. Partly sunny, with a high near 15.

Sun Almanac for Knollwood, Illinois
Sunrise: 07:16 AM
Sunset: 4:48 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:19 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:27 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.