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

35°F

2°C

Humidity 82%
Wind Speed SW 8 mph
Barometer 30.01 in (1016.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 12 Jan 9:52 pm CST
Extended Forecast for

Lake Forest IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind 10 to 15 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Decreasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain showers before 1am, then a slight chance of rain and snow showers between 1am and 2am, then a slight chance of snow showers after 2am. Mostly cloudy, with a low around 26. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 50 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 28. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 28 °F

    Chance Snow
    Showers and
    Blustery

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow

  • Friday

    Friday: Snow likely. Cloudy, with a high near 33.

    High: 33 °F

    Snow Likely

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Southwest wind 10 to 15 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A slight chance of rain showers before 1am, then a slight chance of rain and snow showers between 1am and 2am, then a slight chance of snow showers after 2am. Mostly cloudy, with a low around 26. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 28. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 14. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 21.
Friday
Snow likely. Cloudy, with a high near 33.
Friday Night
A chance of snow. Mostly cloudy, with a low around 17.
Saturday
A chance of snow. Mostly cloudy, with a high near 21.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 7.
Sunday
Mostly cloudy, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 7.
M.L.King Day
Partly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.86°W
Last Update:
9:36 pm CST Jan 12, 2026
Forecast Valid:
10pm CST Jan 12, 2026-6pm CST Jan 19, 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