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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: 12:11 am CST Jan 9, 2026 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
30% chance of rain on Overnight 30% chance of rain on Friday 60% chance of rain & snow on Saturday 20% chance of snow on Sunday Mostly Sunny on Monday 20% chance of rain on Tuesday 20% chance of rain & snow on Wednesday Partly Sunny on Thursday
Low: 42°F High: 41 °F High: 37°F High: 32°F High: 39°F High: 42°F High: 34°F High: 29°F
Low: 32°F Low: 21°F Low: 24°F Low: 33°F Low: 29°F Low: 20°F  
Rain Rain Rain & Snow Snow Mostly Sunny Rain Rain & Snow Partly Sunny
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
61°
Mostly Clear
as of 12:52 AM CST
Rel. Humidity: 77%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.39 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 29 MPH
210° Southwest
Cloud Level(s): Few at 8500ft
Current Conditions at
CHICAGO-OHARE - (KORD)
59°
Mostly Clear
as of 12:51 AM CST
Rel. Humidity: 82%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.38 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 26 MPH
210° Southwest
Cloud Level(s): Few at 8500ft, Few at 15000ft
Current Conditions at
WEST CHICAGO - (KDPA)
59°
Clear
as of 12:52 AM CST
Rel. Humidity: 82%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.38 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 36 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
WAUKEGAN - (KUGN)
57°
Partly Cloudy
as of 12:51 AM CST
Rel. Humidity: 87%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.35 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 29 MPH
210° Southwest
Cloud Level(s): Scattered at 9000ft
30% chance of rain Overnight Overnight... A slight chance of rain before 3am, then a chance of showers, mainly after 5am. Mostly cloudy, with a low around 42. Breezy, with a south southwest wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.
30% chance of rain Friday Friday... A 30 percent chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 41 by 5pm. Breezy, with a west southwest wind 15 to 25 mph becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 40 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 32. North northwest wind around 5 mph becoming calm in the evening.
60% chance of rain & snow Saturday Saturday... Snow likely, possibly mixed with rain, mainly before noon. Mostly cloudy, with a high near 37. Breezy, with a south southeast wind 5 to 10 mph becoming west 15 to 20 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
40% chance of snow Saturday Night Saturday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 21. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
20% chance of snow Sunday Sunday... A 20 percent chance of snow before noon. Partly sunny, with a high near 32. Breezy.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 24.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 39.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 33.
20% chance of rain Tuesday Tuesday... A chance of rain after noon. Mostly cloudy, with a high near 42.
20% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow. Cloudy, with a low around 29.
20% chance of rain & snow Wednesday Wednesday... A chance of rain and snow. Mostly cloudy, with a high near 34.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 20.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 29.
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
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