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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: 12:21 am CST Dec 18, 2025 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
40% chance of rain on Overnight 100% chance of freezing rain on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday Sunny on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday
Low: 32°F High: 47 °F High: 26°F High: 42°F High: 30°F High: 38°F High: 44°F High: 40°F
Low: 11°F Low: 21°F Low: 17°F Low: 20°F Low: 33°F Low: 28°F  
Rain Freezing Rain Mostly Sunny Mostly Cloudy Sunny Mostly Cloudy Partly Sunny Partly Sunny
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
39°
Feels like 31°F
Cloudy
as of 12:52 AM CST
Rel. Humidity: 80%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: MVFR
Wind Data
13 MPH
170° South
Cloud Level(s): Broken at 2700ft, Solid Overcast at 3300ft
Current Conditions at
CHICAGO-OHARE - (KORD)
43°
Feels like 36°F
Cloudy
as of 12:55 AM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: MVFR
Wind Data
12 MPH
Gust: 21 MPH
170° South
Cloud Level(s): Solid Overcast at 2400ft
Current Conditions at
WEST CHICAGO - (KDPA)
37°
Feels like 29°F
Cloudy
as of 12:52 AM CST
Rel. Humidity: 86%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.68 in.
Flight Rule: MVFR
Wind Data
12 MPH
160° South
Cloud Level(s): Solid Overcast at 2500ft
Current Conditions at
WAUKEGAN - (KUGN)
37°
Mostly Cloudy
as of 1:07 AM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.66 in.
Flight Rule: MVFR
Wind Data
8 MPH
160° South
Cloud Level(s): Broken at 2900ft
40% chance of rain Overnight Overnight... A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 32. South wind around 15 mph, with gusts as high as 30 mph.

100% chance of freezing rain Thursday Thursday... Rain showers before 5pm, then a slight chance of freezing rain. Temperature rising to near 47 by 9am, then falling to around 32 during the remainder of the day. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. Little or no ice accumulation expected.

40% chance of snow Thursday Night Thursday Night... Scattered snow showers, mainly before 9pm. Mostly cloudy, with a low around 11. Wind chill values as low as -6. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 26. Wind chill values as low as -7. Blustery, with a west northwest wind 15 to 20 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 21. South wind 10 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 42.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 17.

Sunny on Sunday Sunday... Sunny, with a high near 30.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 20.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 38.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 33.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 44.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 28.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 40.

Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:16 AM
Sunset: 4:22 PM
Civil Sunrise:06:44 AM
Civil Sunset: 4:54 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:29 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:03 PM
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