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.

Rain

44°F

7°C

Humidity 89%
Wind Speed W 10 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 41°F (5°C)
Visibility 8.00 mi
Wind Chill39°F (4°C)
Last update 6 Apr 12:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Showers likely, mainly before 2am. Partly cloudy, with a low around 37. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. Northeast wind around 10 mph.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 29. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 29 °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: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 64.

    High: 64 °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

Overnight
Showers likely, mainly before 2am. Partly cloudy, with a low around 37. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 23. North wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 41. Northeast wind around 10 mph.
Tuesday Night
A slight chance of snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 29. South southeast wind around 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
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 64.
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 50.
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
 42.23°N 88.33°W
Last Update:
12:56 am CDT Apr 6, 2026
Forecast Valid:
1am CDT Apr 6, 2026-6pm CDT Apr 12, 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