National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

27°F

-3°C

Humidity 78%
Wind Speed S 17 G 25 mph
Barometer 30.04 in (1018.0 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 18 Mar 9:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 38. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 31. West southwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 50. East northeast wind around 5 mph becoming south southeast in the afternoon.

    High: 50 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37. East northeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 10 mph.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 64. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 64 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 38. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 31. West southwest wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 50. East northeast wind around 5 mph becoming south southeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 37. East northeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 10 mph.
Friday
Mostly cloudy, with a high near 64. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly cloudy, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
10:36 am CDT Mar 18, 2026
Forecast Valid:
10am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
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Additional Resources

Radar & Satellite Image

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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