National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

A Few Clouds

75°F

24°C

Humidity 34%
Wind Speed SW 8 G 18 mph
Barometer 29.67 in (1004.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Mar 6:52 pm CDT
Extended Forecast for

Arlington Heights IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southwest wind 5 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 4pm. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 44 °F⇓

    Slight Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 45. North wind around 5 mph, with gusts as high as 10 mph.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Southwest wind 5 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Sunday
A 20 percent chance of showers before 4pm. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 30. North wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 45. North wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Partly cloudy, with a low around 32. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly cloudy, with a high near 62.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arlington Heights IL
 42.09°N 87.98°W
Last Update:
3:06 pm CDT Mar 21, 2026
Forecast Valid:
7pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation