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

29°F

-2°C

Humidity 72%
Wind Speed W 6 mph
Barometer 29.78 in (1009.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 6 Dec 12:52 am CST
Extended Forecast for

Lake Forest IL

  • Overnight

    Overnight: A 20 percent chance of snow before 3am. Cloudy, with a steady temperature around 27. West wind around 10 mph, with gusts as high as 15 mph.

    Low: 27 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 26. West northwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely after midnight. Cloudy, with a low around 21. Southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 21 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow likely, mainly before noon. Partly sunny, with a high near 27. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 27 °F

    Snow Likely
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 18. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Chance Snow
    Showers

  • Monday

    Monday: A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 25.

    High: 25 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain and snow likely, becoming all rain after midnight. Cloudy, with a low around 32.

    Low: 32 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Overnight
A 20 percent chance of snow before 3am. Cloudy, with a steady temperature around 27. West wind around 10 mph, with gusts as high as 15 mph.
Saturday
Partly sunny, with a high near 26. West northwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Snow likely after midnight. Cloudy, with a low around 21. Southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow likely, mainly before noon. Partly sunny, with a high near 27. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 18. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 25.
Monday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
Rain and snow likely, becoming all rain after midnight. Cloudy, with a low around 32.
Wednesday
Snow showers likely, possibly mixed with rain before noon, then a chance of snow showers. Cloudy, with a high near 37.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 17.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 13.
Friday
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:
12:15 am CST Dec 6, 2025
Forecast Valid:
1am CST Dec 6, 2025-6pm CST Dec 12, 2025
 
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