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.

Overcast

74°F

23°C

Humidity 79%
Wind Speed Calm
Barometer 30.02 in (1016.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Jul 3:52 am CDT
Extended Forecast for

Lake Forest IL

  • Today

    Today: Showers and thunderstorms likely, mainly between noon and 3pm. Mostly cloudy, with a high near 84. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 9pm and 1am. Mostly cloudy, with a low around 67. West wind 5 to 10 mph becoming north northeast after midnight.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly cloudy, with a steady temperature around 69. Northeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 66 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 78. East wind around 10 mph, with gusts as high as 15 mph.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 74.

    Low: 74 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly between noon and 3pm. Mostly cloudy, with a high near 84. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 9pm and 1am. Mostly cloudy, with a low around 67. West wind 5 to 10 mph becoming north northeast after midnight.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly cloudy, with a steady temperature around 69. Northeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 78. East wind around 10 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 74.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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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 am CDT Jul 19, 2025
Forecast Valid:
4am CDT Jul 19, 2025-6pm CDT Jul 25, 2025
 
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