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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: 8:01 am CST Dec 27, 2025 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday New Year's Day Friday
Cloudy on Today 60% chance of rain on Tonight 100% chance of thunderstorms on Sunday 50% chance of snow on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on New Year's Day Sunny on Friday
High: 43°F Low: 46 °F High: 58°F High: 25°F High: 28°F High: 31°F High: 18°F High: 20°F
Low: 18°F Low: 13°F Low: 21°F Low: 10°F Low: 5°F  
Cloudy Rain Thunderstorms Snow Partly Sunny Mostly Cloudy Mostly Sunny Sunny
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
39°
Feels like 33°F
Cloudy
as of 8:52 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 8 Miles
Pressure: 30.04 in.
Flight Rule: IFR
Wind Data
9 MPH
170° South
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
CHICAGO-OHARE - (KORD)
37°
Feels like 30°F
Cloudy
Mist
as of 8:51 AM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 4 Miles
Pressure: 30.03 in.
Flight Rule: IFR
Wind Data
9 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
WEST CHICAGO - (KDPA)
39°
Cloudy
Mist
as of 8:52 AM CST
Rel. Humidity: 93%
Dew Point: 37°F
Visibility: 3 Miles
Pressure: 30.02 in.
Flight Rule: IFR
Wind Data
8 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
WAUKEGAN - (KUGN)
37°
Cloudy
as of 8:51 AM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 7 Miles
Pressure: 30.03 in.
Flight Rule: IFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 600ft
Cloudy on Today Today... Cloudy, with a high near 43. Southeast wind 5 to 10 mph.
60% chance of rain Tonight Tonight... Showers likely, mainly after 3am. Patchy fog. Otherwise, cloudy, with a temperature rising to around 46 by 3am. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of thunderstorms Sunday Sunday... Showers before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then showers after 3pm. Patchy fog before noon. High near 58. South southeast wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
70% chance of rain & snow Sunday Night Sunday Night... Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then a chance of snow showers after midnight. Cloudy, with a low around 18. Wind chill values as low as 1. Windy, with a west wind 20 to 25 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
50% chance of snow Monday Monday... A 50 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 25. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 13. Blustery.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 28.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 21.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 31.
20% chance of snow Wednesday Night Wednesday Night... A chance of snow before midnight. Mostly cloudy, with a low around 10.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 18.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 5.
Sunny on Friday Friday... Sunny, with a high near 20.
Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:19 AM
Sunset: 4:27 PM
Civil Sunrise:06:48 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:08 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.