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

37°F

3°C

Humidity 86%
Wind Speed Calm
Barometer 29.97 in (1015.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 19 Mar 11:52 pm CDT
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Mostly cloudy, with a temperature rising to around 46 by 5am. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 40 °F⇑

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 58. West southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. North wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a temperature rising to around 46 by 5am. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 58. West southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 38. North wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.
Saturday
Mostly sunny, with a high near 64. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 48. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A chance of showers. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
9:11 pm CDT Mar 19, 2026
Forecast Valid:
12am CDT Mar 20, 2026-6pm CDT Mar 26, 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