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.

Mostly Cloudy

57°F

14°C

Humidity 58%
Wind Speed E 15 G 24 mph
Barometer 30.28 in (1025.3 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 20 May 11:52 am CDT
Extended Forecast for

Crystal Lake IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a temperature falling to around 58 by 5pm. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 61 °F⇓

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Northeast wind 10 to 15 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 59. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. Northeast wind 10 to 15 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 64. East wind around 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers after 1am. Cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a temperature falling to around 58 by 5pm. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 42. Northeast wind 10 to 15 mph.
Thursday
Partly sunny, with a high near 59. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 44. Northeast wind 10 to 15 mph.
Friday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 64. East wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers after 1am. Cloudy, with a low around 50. Chance of precipitation is 70%.
Saturday
Mostly cloudy, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Mostly cloudy, with a high near 76.
Sunday Night
Partly cloudy, with a low around 54.
Memorial Day
Partly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
11:35 am CDT May 20, 2026
Forecast Valid:
12pm CDT May 20, 2026-6pm CDT May 26, 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