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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: 6:01 pm CST Jan 9, 2026 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
50% chance of rain & snow on Tonight 90% chance of rain & snow on Saturday Mostly Cloudy on Sunday Mostly Sunny on Monday 20% chance of rain on Tuesday 20% chance of snow on Wednesday Partly Sunny on Thursday 20% chance of snow on Friday
Low: 32°F High: 35°F High: 32°F High: 40°F High: 45°F High: 34°F High: 29°F High: 33°F
Low: 21°F Low: 25°F Low: 32°F Low: 29°F Low: 18°F Low: 22°F  
Rain & Snow Rain & Snow Mostly Cloudy Mostly Sunny Rain Snow Partly Sunny Snow
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
43°
Cloudy
as of 6:52 PM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 2700ft
Current Conditions at
CHICAGO-OHARE - (KORD)
43°
Mostly Cloudy
as of 6:51 PM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: MVFR
Wind Data
5 MPH
240° Southwest
Cloud Level(s): Broken at 2200ft
Current Conditions at
WEST CHICAGO - (KDPA)
39°
Cloudy
as of 6:52 PM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: MVFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
WAUKEGAN - (KUGN)
30°
Mostly Cloudy
as of 6:51 PM CST
Rel. Humidity: 92%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Broken at 2700ft
50% chance of rain & snow Tonight Tonight... A chance of rain after 2am, mixing with snow after 5am. Mostly cloudy, with a low around 32. North northwest wind around 5 mph becoming southeast in the evening. Chance of precipitation is 50%.
90% chance of rain & snow Saturday Saturday... Snow, possibly mixed with rain before noon, then a chance of snow showers. High near 35. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
40% chance of snow Saturday Night Saturday Night... Scattered snow showers. Mostly cloudy, with a low around 21. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Mostly Cloudy on Sunday Sunday... Mostly cloudy, then gradually becoming sunny, with a high near 32. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 25. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 40.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 32.
20% chance of rain Tuesday Tuesday... A chance of rain. Mostly cloudy, with a high near 45.
20% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow after midnight. Cloudy, with a low around 29.
20% chance of snow Wednesday Wednesday... A chance of snow. Mostly cloudy, with a high near 34.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 18.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 29.
20% chance of snow Thursday Night Thursday Night... A chance of snow. Mostly cloudy, with a low around 22.
20% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 33.
Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:20 AM
Sunset: 4:39 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:18 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.