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

67°F

19°C

Humidity 51%
Wind Speed SW 13 G 21 mph
Barometer 30.06 in (1017.6 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 29 Oct 2:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Isolated showers. Mostly cloudy, with a low around 58. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers before 8am. Mostly cloudy through mid morning, then gradual clearing, with a high near 66. Southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

    High: 66 °F

    Isolated
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Northwest wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 61. Calm wind becoming east around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Cloudy, with a high near 60. Chance of precipitation is 70%.

    High: 60 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Cloudy, with a low around 49.

    Low: 49 °F

    Cloudy then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Isolated showers. Mostly cloudy, with a low around 58. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Isolated showers before 8am. Mostly cloudy through mid morning, then gradual clearing, with a high near 66. Southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 40. Northwest wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 61. Calm wind becoming east around 5 mph in the morning. Winds could gust as high as 10 mph.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.
Saturday
Showers likely, mainly before 1pm. Cloudy, with a high near 60. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers after 1am. Cloudy, with a low around 49.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
A chance of showers. Mostly cloudy, with a high near 67.
Monday Night
Showers likely. Mostly cloudy, with a low around 55.
Tuesday
Showers likely. Mostly cloudy, with a high near 68.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 52.
Wednesday
Showers likely. Mostly cloudy, with a high near 64.
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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:
2:46 am CDT Oct 29, 2026
Forecast Valid:
3am CDT Oct 29, 2026-6pm CST Nov 4, 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