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

71°F

22°C

Humidity 87%
Wind Speed W 3 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 12:52 am CDT
Extended Forecast for

Lake Forest IL

  • Overnight

    Overnight: Partly cloudy, with a low around 63. West northwest wind 5 to 10 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Scattered showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 78 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. North wind around 5 mph, with gusts as high as 10 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 63. West northwest wind 5 to 10 mph.
Saturday
Scattered showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 59. Northwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 75. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 59. North wind around 5 mph, with gusts as high as 10 mph.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.86°W
Last Update:
11:56 pm CDT Aug 21, 2026
Forecast Valid:
1am CDT Aug 22, 2026-6pm CDT Aug 28, 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