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.

A Few Clouds

74°F

23°C

Humidity 85%
Wind Speed E 8 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 28 Jun 9:52 pm CDT
Extended Forecast for

Lake Forest IL

Heat Advisory June 29, 12:00pm until July 1, 10:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 71. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 102. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 71. Southeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 93. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 94. Heat index values as high as 102. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 77. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.
Friday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Independence Day
Mostly sunny, with a high near 92.
Saturday Night
A chance of showers. Partly cloudy, with a low around 71.
Sunday
A chance of showers. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.88°W
Last Update:
9:16 pm CDT Jun 28, 2026
Forecast Valid:
10pm CDT Jun 28, 2026-6pm CDT Jul 5, 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