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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: 1:51 am CST Dec 26, 2025 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday New Year's Day
80% chance of rain on Overnight 70% chance of rain on Friday Morning Fog on Saturday 70% chance of rain on Sunday 20% chance of snow on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on New Year's Day
Low: 41°F High: 47°F High: 44°F High: 56°F High: 27°F High: 30°F High: 28°F High: 22°F
Low: 39°F Low: 42°F Low: 21°F Low: 14°F Low: 20°F Low: 11°F  
Rain Rain Morning Fog Rain Snow Partly Sunny Mostly Cloudy Mostly Sunny
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
41°
Cloudy
as of 2:18 AM CST
Rel. Humidity: 75%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
8 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 1400ft
Current Conditions at
CHICAGO-OHARE - (KORD)
41°
Feels like 33°F
Cloudy
as of 1:51 AM CST
Rel. Humidity: 75%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.81 in.
Flight Rule: MVFR
Wind Data
14 MPH
Gust: 21 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 1300ft
Current Conditions at
WEST CHICAGO - (KDPA)
39°
Feels like 32°F
Cloudy
as of 1:52 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 9 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
12 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 1100ft
Current Conditions at
WAUKEGAN - (KUGN)
37°
Feels like 28°F
Cloudy
Light Rain
as of 1:51 AM CST
Rel. Humidity: 86%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
16 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 1400ft
80% chance of rain Overnight Overnight... Showers or drizzle before 4am, then rain after 4am. Patchy fog after 3am. Low around 41. Southeast wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
70% chance of rain Friday Friday... Rain likely, mainly before 7am. Patchy fog before noon. Otherwise, cloudy, with a high near 47. South southeast wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Patchy Fog on Friday Night Friday Night... Patchy fog after midnight. Otherwise, cloudy, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.
Morning Fog on Saturday Saturday... Patchy fog before 9am. Otherwise, cloudy, with a high near 44. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
40% chance of rain Saturday Night Saturday Night... A 40 percent chance of showers, mainly after midnight. Cloudy, with a low around 42. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
70% chance of rain Sunday Sunday... Showers likely, mainly after noon. Cloudy, with a high near 56. Chance of precipitation is 70%.
60% chance of rain & snow Sunday Night Sunday Night... Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 3am, then a chance of snow showers after 3am. Cloudy, with a low around 21. Blustery. Chance of precipitation is 60%.
20% chance of snow Monday Monday... A chance of snow showers before noon. Mostly cloudy, with a high near 27. Blustery.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 14.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 30.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 20.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 28.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 11.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 22.
Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:19 AM
Sunset: 4:26 PM
Civil Sunrise:06:47 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:07 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.