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.

Mostly Cloudy

62°F

17°C

Humidity 96%
Wind Speed N 8 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 6:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Today

    Today: Mostly cloudy, with a high near 63. Northeast wind 5 to 10 mph.

    High: 63 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely, then rain and possibly a thunderstorm after 1pm. High near 58. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Rain Likely
    then Rain

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then a slight chance of rain. Low around 47. East northeast wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Rain

  • Friday

    Friday: A 30 percent chance of rain before 1pm. Partly sunny, with a high near 53. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph.

    High: 53 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 63. Northeast wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 53. Northeast wind around 10 mph, with gusts as high as 15 mph.
Thursday
Rain likely, then rain and possibly a thunderstorm after 1pm. High near 58. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 1am, then a slight chance of rain. Low around 47. East northeast wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Friday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 53. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph.
Friday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33.
Saturday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 55.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 70.
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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:
5:46 am CDT Oct 14, 2026
Forecast Valid:
7am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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Additional Resources

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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