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

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

74°F

23°C

Humidity 91%
Wind Speed S 3 mph
Barometer 30.07 in (1017.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 3 Jul 6:52 am CDT
Extended Forecast for

Arlington Heights IL

  • Today

    Today: Showers and thunderstorms likely, mainly between 2pm and 4pm. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    T-storms
    Likely

  • Independence Day

    Independence Day: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 86. West wind 5 to 10 mph becoming east southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Northeast wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 70%.

    Low: 69 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 82 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly between 2pm and 4pm. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely, mainly between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Independence Day
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 86. West wind 5 to 10 mph becoming east southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Northeast wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 70%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington Heights IL
 42.09°N 87.98°W
Last Update:
3:51 am CDT Jul 3, 2026
Forecast Valid:
7am CDT Jul 3, 2026-6pm CDT Jul 9, 2026
 
Forecast Discussion
 
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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