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.

Partly Cloudy

38°F

3°C

Humidity 86%
Wind Speed Calm
Barometer 30.40 in (1029.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Apr 10:52 pm CDT
Extended Forecast for

Arlington Heights IL

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 35. East northeast wind around 5 mph becoming calm after midnight.

    Low: 35 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 52. Light east wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 52 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a temperature falling to near 49 by 8pm, then rising to around 55 during the remainder of the night. East southeast wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 49 °F⇑

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 75. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.

    High: 75 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a slight chance of showers and thunderstorms after 10am. Partly sunny, with a high near 79. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Tuesday

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

    High: 80 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 35. East northeast wind around 5 mph becoming calm after midnight.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 52. Light east wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a temperature falling to near 49 by 8pm, then rising to around 55 during the remainder of the night. East southeast wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Sunday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 75. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a slight chance of showers and thunderstorms after 10am. Partly sunny, with a high near 79. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Tuesday
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55.
Thursday
A chance of showers. Partly sunny, with a high near 75.
Thursday Night
A chance of showers. Partly cloudy, with a low around 55.
Friday
A chance of showers. Mostly sunny, with a high near 74.
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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:
9:41 pm CDT Apr 10, 2026
Forecast Valid:
11pm CDT Apr 10, 2026-6pm CDT Apr 17, 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