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

69°F

21°C

Humidity 84%
Wind Speed S 5 mph
Barometer 29.87 in (1011.1 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 23 Sep 3:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: A chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. West southwest wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 71. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 71 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 57. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73.

    High: 73 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 50%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. West southwest wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 40%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 71. North northeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
3:26 am CDT Sep 23, 2025
Forecast Valid:
3am CDT Sep 23, 2025-6pm CDT Sep 29, 2025
 
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