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

51°F

11°C

Humidity 50%
Wind Speed NE 13 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 19 Mar 3:52 pm CDT
Extended Forecast for

Lake Forest IL

  • Tonight

    Tonight: Increasing clouds, with a low around 38. East wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 57. West southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. North wind around 5 mph becoming east southeast after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 58.

    High: 58 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. East wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Friday
Partly sunny, with a high near 57. West southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Mostly cloudy, with a low around 37. North wind around 5 mph becoming east southeast after midnight.
Saturday
Mostly sunny, with a high near 62. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 47. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A chance of showers. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.86°W
Last Update:
4:11 pm CDT Mar 19, 2026
Forecast Valid:
4pm CDT Mar 19, 2026-6pm CDT Mar 26, 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