National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

44°F

7°C

Humidity 89%
Wind Speed N 12 G 18 mph
Barometer 29.84 in (1010.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 12 Nov 2:52 am CST
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 39. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers between noon and 2pm. Partly sunny, with a high near 41. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 41 °F

    Slight Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. North wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and 10am, then a slight chance of rain showers after 10am. Partly sunny, with a high near 42. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 39. North wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of showers between noon and 2pm. Partly sunny, with a high near 41. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 30. North wind 10 to 15 mph, with gusts as high as 30 mph.
Friday
A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and 10am, then a slight chance of rain showers after 10am. Partly sunny, with a high near 42. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 26. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 48.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly clear, with a low around 30.
Wednesday
Sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
1:16 am CST Nov 12, 2026
Forecast Valid:
3am CST Nov 12, 2026-6pm CST Nov 18, 2026
 
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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