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

26°F

-3°C

Humidity 66%
Wind Speed NE 12 mph
Barometer 30.35 in (1028.5 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 1 Mar 12:52 am CST
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 21. North northeast wind around 10 mph.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33. East northeast wind 5 to 10 mph.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 22. East wind around 5 mph, with gusts as high as 10 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 43. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 33. East southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Cloudy, with a high near 43. Chance of precipitation is 70%.

    High: 43 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

    Low: 35 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 21. North northeast wind around 10 mph.
Sunday
Partly sunny, with a high near 33. East northeast wind 5 to 10 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 22. East wind around 5 mph, with gusts as high as 10 mph.
Monday
Mostly sunny, with a high near 43. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 33. East southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 43. Chance of precipitation is 70%.
Tuesday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 47.
Wednesday Night
A chance of showers. Cloudy, with a low around 40.
Thursday
A chance of showers. Cloudy, with a high near 52.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 42.
Friday
Showers likely. Cloudy, with a high near 64.
Friday Night
Showers likely. Mostly cloudy, with a low around 43.
Saturday
A chance of showers. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
1:16 am CST Mar 1, 2026
Forecast Valid:
1am CST Mar 1, 2026-6pm CST Mar 7, 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