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Arlington Heights, Illinois Weather Forecast
Arlington Heights, Illinois Weather
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Weather Forecast for Arlington Heights, Illinois : Cook County
Issued: 12:11 am CST Dec 9, 2025 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
50% chance of snow on Overnight 30% chance of freezing rain on Tuesday 70% chance of snow on Wednesday 30% chance of snow on Thursday 20% chance of snow on Friday Partly Sunny on Saturday Mostly Sunny on Sunday 20% chance of snow on Monday
Low: 18°F High: 34°F High: 34°F High: 23°F High: 23°F High: 10°F High: 16°F High: 25°F
Low: 36 °F Low: 14°F Low: 10°F Low: 2°F Low: 0°F Low: 7°F  
Snow Freezing Rain Snow Snow Snow Partly Sunny Mostly Sunny Snow
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
21°
Feels like 8°F
Cloudy
as of 12:52 AM CST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
13 MPH
200° South
Cloud Level(s): Broken at 4400ft, Broken at 6000ft, Solid Overcast at 8000ft
Current Conditions at
CHICAGO-OHARE - (KORD)
21°
Feels like 9°F
Cloudy
Light Snow
as of 12:59 AM CST
Rel. Humidity: 73%
Dew Point: 14°F
Visibility: 5 Miles
Pressure: 30.02 in.
Flight Rule: MVFR
Wind Data
12 MPH
Gust: 21 MPH
190° South
Cloud Level(s): Scattered at 3200ft, Broken at 4300ft, Solid Overcast at 6000ft
Current Conditions at
WEST CHICAGO - (KDPA)
19°
Feels like 6°F
Cloudy
Light Snow Mist
as of 1:03 AM CST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 6 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
14 MPH
170° South
Cloud Level(s): Scattered at 3000ft, Solid Overcast at 4100ft
Current Conditions at
WAUKEGAN - (KUGN)
21°
Feels like 8°F
Cloudy
Light Snow
as of 1:13 AM CST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 2 1/2 Miles
Pressure: 29.99 in.
Flight Rule: IFR
Wind Data
13 MPH
200° South
Cloud Level(s): Solid Overcast at 2600ft
50% chance of snow Overnight Overnight... Scattered snow showers, mainly before 4am. Cloudy, with a low around 18. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
30% chance of freezing rain Tuesday Tuesday... A chance of rain or freezing rain after 5pm. Cloudy, with a high near 34. West southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
100% chance of freezing rain & snow Tuesday Night Tuesday Night... Rain, snow, and freezing rain, becoming all rain after 10pm. Temperature rising to around 36 by 11pm. Breezy, with a south southwest wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Little or no snow accumulation expected.
70% chance of snow Wednesday Wednesday... Snow likely, mainly before noon. Cloudy, with a high near 34. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
30% chance of snow Wednesday Night Wednesday Night... A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 14. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
30% chance of snow Thursday Thursday... A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 23.
40% chance of snow Thursday Night Thursday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 10.
20% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 23.
20% chance of snow Friday Night Friday Night... A chance of snow before midnight. Mostly cloudy, with a low around 2.
Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 10.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 0.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 16.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 7.
20% chance of snow Monday Monday... A chance of snow. Mostly cloudy, with a high near 25.
Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:09 AM
Sunset: 4:20 PM
Civil Sunrise:06:37 AM
Civil Sunset: 4:52 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:27 PM
Astro Sunrise: 05:28 AM
Astro Sunset: 6:01 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.