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.

Fair

11°F

-12°C

Humidity 70%
Wind Speed Calm
Barometer 30.26 in (1026.0 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 4 Dec 7:52 pm CST
Extended Forecast for

Crystal Lake IL

  • Tonight

    Tonight: Patchy freezing fog after 3am. Increasing clouds, with a temperature rising to around 8 by 5am. Wind chill values as low as -11. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 1 °F⇑

    Mostly Clear
    then Patchy
    Freezing Fog

  • Friday

    Friday: Increasing clouds, with a high near 27. Wind chill values as low as -6. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 27 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Patchy snow and freezing rain. Mostly cloudy, with a steady temperature around 26. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Patchy Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 26. West northwest wind 5 to 10 mph.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 14. Calm wind becoming north around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    Low: 14 °F

    Slight Chance
    Snow then
    Snow Likely

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Partly sunny, with a high near 22.

    High: 22 °F

    Chance Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 3.

    Low: 3 °F

    Slight Chance
    Snow

  • Monday

    Monday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow likely. Cloudy, with a low around 13.

    Low: 13 °F

    Snow Likely

Detailed Forecast

Tonight
Patchy freezing fog after 3am. Increasing clouds, with a temperature rising to around 8 by 5am. Wind chill values as low as -11. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Increasing clouds, with a high near 27. Wind chill values as low as -6. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Patchy snow and freezing rain. Mostly cloudy, with a steady temperature around 26. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 26. West northwest wind 5 to 10 mph.
Saturday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 14. Calm wind becoming north around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of snow before noon. Partly sunny, with a high near 22.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Monday
Partly sunny, with a high near 21.
Monday Night
Snow likely. Cloudy, with a low around 13.
Tuesday
A chance of snow before noon. Mostly cloudy, with a high near 30.
Tuesday Night
Snow likely. Cloudy, with a low around 20.
Wednesday
Snow likely. Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 10.
Thursday
A chance of snow. Partly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
7:56 pm CST Dec 4, 2025
Forecast Valid:
8pm CST Dec 4, 2025-6pm CST Dec 11, 2025
 
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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