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

30°F

-1°C

Humidity 66%
Wind Speed SW 8 mph
Barometer 30.25 in (1025.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 1 Dec 1:52 pm CST
Extended Forecast for

Lake Forest IL

Winter Weather Advisory until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 2, 12:00am

    NOW until 12:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 30 °F

    Snow

  • Tonight

    Tonight: Snow before midnight, then a chance of snow with intermittent flurries between midnight and 2am. Low around 18. South wind around 5 mph becoming west northwest after midnight. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 18 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 23. West northwest wind 5 to 10 mph.

    High: 23 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 19. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Cloudy

  • Wednesday

    Wednesday: Snow showers likely, mainly after noon. Cloudy, with a high near 34. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 34 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 5.

    Low: 5 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 16.

    High: 16 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Intermittent flurries with a slight chance of snow before 3pm, then snow, mainly after 3pm. High near 30. South wind around 5 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow before midnight, then a chance of snow with intermittent flurries between midnight and 2am. Low around 18. South wind around 5 mph becoming west northwest after midnight. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Tuesday
Partly sunny, with a high near 23. West northwest wind 5 to 10 mph.
Tuesday Night
Cloudy, with a low around 19. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Snow showers likely, mainly after noon. Cloudy, with a high near 34. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 5.
Thursday
Sunny, with a high near 16.
Thursday Night
Partly cloudy, with a low around 3.
Friday
Partly sunny, with a high near 26.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Mostly cloudy, with a high near 30.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 18.
Sunday
A chance of snow. Mostly cloudy, with a high near 27.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.86°W
Last Update:
1:34 pm CST Dec 1, 2025
Forecast Valid:
2pm CST Dec 1, 2025-6pm CST Dec 7, 2025
 
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