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.

A Few Clouds

38°F

3°C

Humidity 86%
Wind Speed S 6 mph
Barometer 29.91 in (1013.4 mb)
Dewpoint 34°F (1°C)
Visibility 9.00 mi
Wind Chill33°F (1°C)
Last update 27 Feb 8:52 am CST
Extended Forecast for

Crystal Lake IL

  • Today

    Today: Mostly sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph.

    High: 61 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 33 °F

    Slight Chance
    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 17. North wind around 10 mph, with gusts as high as 15 mph.

    Low: 17 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 31. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 31 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 40.

    High: 40 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph.
Tonight
Mostly clear, with a low around 28. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Saturday
A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 17. North wind around 10 mph, with gusts as high as 15 mph.
Sunday
Partly sunny, with a high near 31. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of rain. Mostly cloudy, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
A chance of rain. Partly sunny, with a high near 47.
Wednesday Night
Rain likely. Cloudy, with a low around 37.
Thursday
Rain likely. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.25°N 88.33°W
Last Update:
9:06 am CST Feb 27, 2026
Forecast Valid:
9am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
Forecast Discussion
 
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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