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.

A Few Clouds

76°F

24°C

Humidity 52%
Wind Speed Vrbl 7 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 6 Sep 2:52 pm CDT
Extended Forecast for

Crystal Lake IL

  • Tonight

    Tonight: Partly cloudy, with a low around 59. East northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

    Low: 59 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 79. Light east southeast wind becoming east 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 84. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 84 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    Low: 69 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. East northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Labor Day
Mostly sunny, with a high near 79. Light east southeast wind becoming east 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 60. Southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Partly sunny, with a high near 84. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 79.
Friday Night
A chance of showers. Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63.
Sunday
A chance of showers. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
4:16 pm CDT Sep 6, 2026
Forecast Valid:
4pm CDT Sep 6, 2026-6pm CDT Sep 13, 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