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.

Fair

69°F

21°C

Humidity 53%
Wind Speed S 12 mph
Barometer 30.14 in (1020.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 9:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Today

    Today: Partly sunny, with a high near 80. South wind around 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 77. Calm wind becoming south southeast around 5 mph in the morning.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60. South southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 1pm. Partly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 80. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 77. Calm wind becoming south southeast around 5 mph in the morning.
Sunday Night
Increasing clouds, with a low around 60. South southwest wind around 5 mph, with gusts as high as 15 mph.
Columbus Day
Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A chance of showers after 1pm. Partly sunny, with a high near 66.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Thursday
A chance of showers. Mostly cloudy, with a high near 67.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48.
Friday
A chance of showers. Partly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.21°N 88.33°W
Last Update:
5:16 am CDT Oct 10, 2026
Forecast Valid:
10am CDT Oct 10, 2026-6pm CDT Oct 16, 2026
 
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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