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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: 3:11 pm CST Jan 1, 2026 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Clear on Tonight Mostly Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Mostly Cloudy on Tuesday Partly Sunny on Wednesday Mostly Cloudy on Thursday
Low: 13°F High: 25°F High: 29°F High: 31°F High: 42°F High: 46°F High: 43°F High: 46°F
Low: 16°F Low: 16°F Low: 26°F Low: 34°F Low: 30°F Low: 32°F  
Mostly Clear Mostly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Cloudy Partly Sunny Mostly Cloudy
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
18°
Cloudy
as of 3:52 PM CST
Rel. Humidity: 57%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
5 MPH
250° West
Cloud Level(s): Solid Overcast at 5500ft
Current Conditions at
CHICAGO-OHARE - (KORD)
18°
Mostly Cloudy
as of 3:51 PM CST
Rel. Humidity: 52%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
5 MPH
300° Northwest
Cloud Level(s): Broken at 6000ft
Current Conditions at
WEST CHICAGO - (KDPA)
18°
Cloudy
as of 3:52 PM CST
Rel. Humidity: 61%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 6000ft
Current Conditions at
WAUKEGAN - (KUGN)
16°
Cloudy
as of 3:51 PM CST
Rel. Humidity: 72%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
5 MPH
260° West
Cloud Level(s): Solid Overcast at 6000ft
Mostly Clear on Tonight Tonight... Mostly cloudy, then gradually becoming mostly clear, with a low around 13. West wind around 5 mph, with gusts as high as 10 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 25. Northwest wind around 5 mph, with gusts as high as 10 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 16. Northwest wind around 5 mph becoming calm.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 29. Calm wind becoming west northwest around 5 mph in the afternoon.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 16. West northwest wind around 5 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 31.

20% chance of freezing rain & snow Sunday Night Sunday Night... A slight chance of snow and freezing rain before midnight. Mostly cloudy, with a low around 26. Chance of precipitation is 20%.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 42.

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

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 46.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 30.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 43.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 32.

Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 46.

Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:20 AM
Sunset: 4:31 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:12 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.