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

18°F

-8°C

Humidity 65%
Wind Speed NA
Barometer 30.00 in (1016.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 31 Dec 10:52 pm CST
Extended Forecast for

Crystal Lake IL

  • Tonight

    Tonight: A chance of flurries before midnight. Partly cloudy, with a low around 8. Wind chill values as low as zero. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 8 °F

    Chance
    Flurries

  • New Year's Day

    New Year's Day: A 20 percent chance of snow after noon. Partly sunny, with a high near 19. Wind chill values as low as -2. West northwest wind around 5 mph, with gusts as high as 15 mph.

    High: 19 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12. West wind around 5 mph.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 24. Northwest wind around 5 mph.

    High: 24 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15. Northwest wind around 5 mph becoming calm.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of flurries before midnight. Partly cloudy, with a low around 8. Wind chill values as low as zero. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
New Year's Day
A 20 percent chance of snow after noon. Partly sunny, with a high near 19. Wind chill values as low as -2. West northwest wind around 5 mph, with gusts as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 12. West wind around 5 mph.
Friday
Sunny, with a high near 24. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 15. Northwest wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 28.
Saturday Night
Mostly clear, with a low around 12.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 38.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
10:01 pm CST Dec 31, 2025
Forecast Valid:
11pm CST Dec 31, 2025-6pm CST Jan 7, 2026
 
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