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.

Overcast

32°F

0°C

Humidity 64%
Wind Speed N 12 mph
Barometer 30.34 in (1028.3 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 11 Jan 11:52 am CST
Extended Forecast for

Lake Forest IL

  • This Afternoon

    This Afternoon: Partly sunny, with a temperature falling to around 30 by 5pm. Northwest wind 10 to 15 mph becoming west southwest. Winds could gust as high as 20 mph.

    High: 33 °F⇓

    Partly Sunny

  • 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. Partly sunny, with a high near 47. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 29.

    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 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

Detailed Forecast

This Afternoon
Partly sunny, with a temperature falling to around 30 by 5pm. Northwest wind 10 to 15 mph becoming west southwest. Winds could gust as high as 20 mph.
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. Partly sunny, with a high near 47. 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.
Wednesday
Snow likely, possibly mixed with rain before noon, then snow. High near 36. Breezy. Chance of precipitation is 80%.
Wednesday Night
A 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.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.88°W
Last Update:
12:46 pm CST Jan 11, 2026
Forecast Valid:
12pm CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

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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