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.

Mostly Cloudy

32°F

0°C

Humidity 64%
Wind Speed W 12 G 21 mph
Barometer 30.37 in (1029.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 11 Jan 3:52 pm CST
Extended Forecast for

Lake Forest IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 33. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 48. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 29. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Chance Rain

  • Wednesday

    Wednesday: Snow likely, possibly mixed with rain before noon, then snow. High near 36. Breezy. Chance of precipitation is 80%.

    High: 36 °F

    Breezy.
    Rain/Snow
    Likely then
    Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 16. Blustery.

    Low: 16 °F

    Chance Snow
    and Blustery

  • Thursday

    Thursday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 33. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 48. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 29. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Snow likely, possibly mixed with rain before noon, then snow. High near 36. Breezy. Chance of precipitation is 80%.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 16. Blustery.
Thursday
Partly sunny, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 22.
Friday
A chance of snow. Mostly cloudy, with a high near 33.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18.
Saturday
A chance of snow. Mostly cloudy, with a high near 26.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 11.
Sunday
Partly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.21°N 87.89°W
Last Update:
3:11 pm CST Jan 11, 2026
Forecast Valid:
4pm CST Jan 11, 2026-6pm CST Jan 18, 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