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

41°F

5°C

Humidity 76%
Wind Speed SE 8 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 9 Jan 10:52 pm CST
Extended Forecast for

Lake Forest IL

  • Tonight

    Tonight: A slight chance of rain between 4am and 5am, then a chance of rain and snow. Cloudy, with a low around 35. Southeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 35 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Rain and snow before noon, then a chance of snow showers. Temperature falling to around 32 by 5pm. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 36 °F⇓

    Rain/Snow
    then Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Scattered snow showers. Mostly cloudy, with a low around 22. West northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 22 °F

    Scattered
    Snow Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 32. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 32 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A slight chance of rain between 4am and 5am, then a chance of rain and snow. Cloudy, with a low around 35. Southeast wind around 5 mph. Chance of precipitation is 40%.
Saturday
Rain and snow before noon, then a chance of snow showers. Temperature falling to around 32 by 5pm. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday Night
Scattered snow showers. Mostly cloudy, with a low around 22. West northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 32. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
A chance of rain. Mostly cloudy, with a high near 44.
Tuesday Night
A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 29.
Wednesday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
Partly sunny, with a high near 28.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 23.
Friday
A chance of snow. Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.26°N 87.85°W
Last Update:
11:41 pm CST Jan 9, 2026
Forecast Valid:
11pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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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