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

55°F

13°C

Humidity 62%
Wind Speed S 9 mph
Barometer 30.13 in (1020.4 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 12 Apr 12:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly before 3am. Cloudy, with a low around 48. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 75. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 75 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 60 °F

    Showers and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly before 3am. Cloudy, with a low around 48. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 75. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 40 mph.
Sunday Night
Showers likely and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 61. Chance of precipitation is 80%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 54.
Friday
A chance of showers. Mostly sunny, with a high near 78.
Friday Night
Showers likely. Mostly cloudy, with a low around 46.
Saturday
A chance of showers. Partly sunny, with a high near 60.
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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:
12:46 am CDT Apr 12, 2026
Forecast Valid:
1am CDT Apr 12, 2026-6pm CDT Apr 18, 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