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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 Dec 28, 2025 Latitude: 42.0883603 Longitude: -87.9806265 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday New Year's Day Friday Saturday
60% chance of rain on Overnight 100% chance of thunderstorms on Sunday 60% chance of snow on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on New Year's Day Mostly Sunny on Friday Partly Sunny on Saturday
Low: 46°F High: 56°F High: 25°F High: 27°F High: 32°F High: 22°F High: 25°F High: 33°F
Low: 20°F Low: 12°F Low: 23°F Low: 14°F Low: 10°F Low: 17°F  
Rain Thunderstorms Snow Partly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
CHICAGO/WHEELING - (KPWK)
43°
Cloudy
Mist
as of 11:52 PM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 2 1/2 Miles
Pressure: 29.77 in.
Flight Rule: LIFR
Wind Data
5 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
CHICAGO-OHARE - (KORD)
43°
Cloudy
Light Drizzle Mist
as of 11:51 PM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 1 1/2 Miles
Pressure: 29.75 in.
Flight Rule: LIFR
Wind Data
7 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
WEST CHICAGO - (KDPA)
45°
Cloudy
Mist
as of 11:52 PM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 1 1/4 Miles
Pressure: 29.74 in.
Flight Rule: LIFR
Wind Data
6 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
WAUKEGAN - (KUGN)
41°
Mostly Cloudy
Mist
as of 11:51 PM CST
Rel. Humidity: 93%
Dew Point: 39°F
Visibility: 3/4 Miles
Pressure: 29.78 in.
Flight Rule: MVFR
Wind Data
8 MPH
110° East
60% chance of rain Overnight Overnight... Areas of drizzle with scattered showers before 4am, then showers likely with areas of drizzle after 4am. Widespread fog, mainly between 3am and 4am. Otherwise, cloudy, with a steady temperature around 46. 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, with thunderstorms also possible after 9am. Areas of fog before noon. High near 56. Breezy, with a south wind 5 to 10 mph becoming west southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
80% chance of rain & snow Sunday Night Sunday Night... Rain before 8pm, then rain and snow between 8pm and 9pm, then snow after 9pm. Low around 20. Wind chill values as low as -1. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
60% chance of snow Monday Monday... Snow likely before noon. Mostly cloudy, with a high near 25. Wind chill values as low as -2. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 12. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 27.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 23.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 32.
20% chance of snow Wednesday Night Wednesday Night... A chance of snow. Mostly cloudy, with a low around 14.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 22.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 10.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 25.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 17.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 33.
Current Radar Image


Sun Almanac for Arlington Heights, Illinois
Sunrise: 07:20 AM
Sunset: 4:28 PM
Civil Sunrise:06:48 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:09 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.