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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: 8:16 am CST Dec 20, 2025 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Christmas Day Friday
Mostly Sunny on Today Mostly Clear on Tonight Sunny on Sunday Cloudy on Monday Partly Sunny on Tuesday 20% chance of rain on Wednesday Mostly Cloudy on Christmas Day Mostly Cloudy on Friday
High: 39 °F Low: 16°F High: 28°F High: 40°F High: 45°F High: 41°F High: 55°F High: 50°F
Low: 21°F Low: 36°F Low: 31°F Low: 41°F Low: 38°F  
Mostly Sunny Mostly Clear Sunny Cloudy Partly Sunny Rain Mostly Cloudy Mostly Cloudy
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
37°
Feels like 27°F
Mostly Clear
as of 7:52 AM CST
Rel. Humidity: 55%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 31 MPH
210° Southwest
Cloud Level(s): Few at 11000ft
Current Conditions at
CHICAGO-OHARE - (KORD)
36°
Feels like 26°F
Cloudy
as of 7:51 AM CST
Rel. Humidity: 55%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
15 MPH
200° South
Cloud Level(s): Few at 11000ft, Broken at 15000ft, Solid Overcast at 25000ft
Current Conditions at
WEST CHICAGO - (KDPA)
36°
Feels like 26°F
Mostly Clear
as of 7:52 AM CST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 28 MPH
200° South
Cloud Level(s): Few at 12000ft
Current Conditions at
WAUKEGAN - (KUGN)
37°
Feels like 26°F
Mostly Cloudy
as of 7:51 AM CST
Rel. Humidity: 55%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.66 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 33 MPH
220° Southwest
Cloud Level(s): Few at 8500ft, Broken at 11000ft
Mostly Sunny on Today Today... Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 39 by 10am, then falling to around 33 during the remainder of the day. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 16. West wind 10 to 15 mph, with gusts as high as 25 mph.

Sunny on Sunday Sunday... Sunny, with a high near 28. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 21. South wind 5 to 10 mph, with gusts as high as 15 mph.

Cloudy on Monday Monday... Cloudy, with a high near 40. South wind 10 to 15 mph, with gusts as high as 20 mph.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 36.

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 31.

20% chance of rain Wednesday Wednesday... A chance of rain after noon. Cloudy, with a high near 41.

20% chance of rain Wednesday Night Wednesday Night... A chance of rain before midnight. Cloudy, with a low around 41.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 55.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 38.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 50.

Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:17 AM
Sunset: 4:23 PM
Civil Sunrise:06:45 AM
Civil Sunset: 4:55 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:30 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:04 PM
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