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

48°F

9°C

Humidity 52%
Wind Speed W 6 mph
Barometer 30.16 in (1021.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 5 Apr 9:52 pm CDT
Extended Forecast for

Crystal Lake IL

  • Tonight

    Tonight: Showers, mainly before 2am. Low around 35. West southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Showers

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. Northeast wind around 5 mph becoming east southeast in the afternoon. Winds could gust as high as 10 mph.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 30. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 63. Breezy.

    High: 63 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers, mainly before 2am. Low around 35. West southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 24. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 41. Northeast wind around 5 mph becoming east southeast in the afternoon. Winds could gust as high as 10 mph.
Tuesday Night
A slight chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 30. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 63. Breezy.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 66.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 43.
Friday
A chance of showers. Partly sunny, with a high near 59.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40.
Saturday
A chance of showers. Partly sunny, with a high near 61.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 49.
Sunday
A chance of showers. Mostly cloudy, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.25°N 88.33°W
Last Update:
9:41 pm CDT Apr 5, 2026
Forecast Valid:
9pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation