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

24°F

-4°C

Humidity 62%
Wind Speed S 12 mph
Barometer 30.16 in (1022.3 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 17 Mar 11:52 pm CDT
Extended Forecast for

Lake Forest IL

  • Overnight

    Overnight: Snow, mainly after 1am. Steady temperature around 22. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

    Low: 22 °F

    Snow

  • Wednesday

    Wednesday: A chance of snow and freezing rain, mainly before 7am. Mostly cloudy, with a high near 40. South wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 40 °F

    Chance Wintry
    Mix then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 35. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 46. South southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.

    High: 46 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 36. North northeast wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow, mainly after 1am. Steady temperature around 22. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
A chance of snow and freezing rain, mainly before 7am. Mostly cloudy, with a high near 40. South wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 35. Southwest wind around 5 mph, with gusts as high as 10 mph.
Thursday
A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 46. South southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Mostly cloudy, with a low around 36. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 53.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Forest IL
 42.24°N 87.86°W
Last Update:
8:51 pm CDT Mar 17, 2026
Forecast Valid:
12am CDT Mar 18, 2026-6pm CDT Mar 24, 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