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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: 10:01 pm CST Jan 20, 2026 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
90% chance of snow on Tonight 70% chance of snow on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday Partly Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday
Low: 21°F High: 27°F High: 20°F High: -2°F High: 8°F High: 15°F High: 16°F High: 25°F
Low: 12°F Low: -8°F Low: -8°F Low: 1°F Low: 1°F Low: 6°F  
Snow Snow Mostly Sunny Mostly Sunny Mostly Cloudy Partly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
23°
Feels like 11°F
Cloudy
as of 9:52 PM CST
Rel. Humidity: 57%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
12 MPH
190° South
Cloud Level(s): Solid Overcast at 6000ft
Current Conditions at
CHICAGO-OHARE - (KORD)
25°
Feels like 15°F
Cloudy
as of 9:51 PM CST
Rel. Humidity: 49%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
9 MPH
190° South
Cloud Level(s): Broken at 5500ft, Solid Overcast at 7000ft
Current Conditions at
WEST CHICAGO - (KDPA)
25°
Feels like 13°F
Cloudy
as of 9:52 PM CST
Rel. Humidity: 53%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
13 MPH
190° South
Cloud Level(s): Solid Overcast at 5000ft
Current Conditions at
WAUKEGAN - (KUGN)
21°
Feels like 10°F
Cloudy
as of 9:51 PM CST
Rel. Humidity: 57%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
9 MPH
190° South
Cloud Level(s): Solid Overcast at 4800ft
90% chance of snow Tonight Tonight... Snow, mainly after 11pm. Steady temperature around 21. South wind around 10 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
70% chance of snow Wednesday Wednesday... Snow likely before 10am, then scattered flurries with isolated snow showers after 5pm. Mostly cloudy, with a high near 27. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
70% chance of blowing snow Wednesday Night Wednesday Night... Snow showers likely, mainly before 10pm. Patchy blowing snow between 9pm and 3am. Mostly cloudy, with a low around 12. Wind chill values as low as -2. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 20. Wind chill values as low as -2. West wind 10 to 15 mph, with gusts as high as 25 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around -8. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny on Friday Friday... Mostly sunny and cold, with a high near -2.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -8.
Mostly Cloudy on Saturday Saturday... Mostly cloudy and cold, with a high near 8.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 1.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 15.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 1.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 16.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 6.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 25.
Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:15 AM
Sunset: 4:51 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:22 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:56 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:29 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.