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.

Overcast

43°F

6°C

Humidity 97%
Wind Speed SW 5 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 6 Apr 2:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Partly cloudy, with a low around 37. West northwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • 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 becoming east southeast in the afternoon.

    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 45.

    Low: 45 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. West northwest wind around 15 mph, with gusts as high as 20 mph.
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 becoming east southeast in the afternoon.
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 45.
Friday
A chance of showers before 1pm. Mostly sunny, with a high near 60.
Friday Night
A chance of showers. Partly cloudy, with a low around 40.
Saturday
A chance of showers. Partly sunny, with a high near 60.
Saturday Night
A chance of showers. Cloudy, with a low around 50.
Sunday
A chance of showers. Mostly cloudy, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.25°N 88.33°W
Last Update:
3:00 am CDT Apr 6, 2026
Forecast Valid:
3am 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