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.

Fair

75°F

24°C

Humidity 48%
Wind Speed S 7 mph
Barometer 30.07 in (1017.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Sep 10:52 am CDT
Extended Forecast for

Arlington Heights IL

  • Today

    Today: Sunny, with a high near 80. Southeast wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. North northwest wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76. North wind around 5 mph, with gusts as high as 10 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers after 1am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 80. Southeast wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 64. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Saturday
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 60. North northwest wind around 5 mph.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76. North wind around 5 mph, with gusts as high as 10 mph.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 59.
Monday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 78.
Monday Night
A chance of showers after 1am. Mostly cloudy, with a low around 68.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 60.
Wednesday
Showers likely. Mostly cloudy, with a high near 74.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Thursday
A chance of showers. Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arlington Heights IL
 42.09°N 87.98°W
Last Update:
3:10 am CDT Sep 11, 2026
Forecast Valid:
11am CDT Sep 11, 2026-6pm CDT Sep 17, 2026
 
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Additional Resources

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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