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.

Light Snow Fog/Mist

30°F

-1°C

Humidity 88%
Wind Speed NW 15 G 25 mph
Barometer 30.03 in (1017.5 mb)
Dewpoint 27°F (-3°C)
Visibility 2.00 mi
Wind Chill19°F (-7°C)
Last update 30 Nov 8:52 am CST
Extended Forecast for

Crystal Lake IL

Winter Weather Advisory until November 30, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until November 30, 12:00pm

    NOW until 12:00pm Sun

    Winter Weather Advisory

  • Today

    High: 30 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: Partly cloudy, with a low around 8. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

    Low: 8 °F

    Partly Cloudy

  • Monday

    Monday: Snow after noon. High near 26. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 26 °F

    Mostly Cloudy
    then Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 13. Calm wind becoming west northwest around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 13 °F

    Snow then
    Slight Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 22. West northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 22 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A chance of snow before midnight. Mostly cloudy, with a low around 1.

    Low: 1 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Today
A 20 percent chance of snow before 11am. Patchy blowing snow before 3pm. Mostly cloudy, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 8. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Monday
Snow after noon. High near 26. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Snow, mainly before midnight. Low around 13. Calm wind becoming west northwest around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Partly sunny, with a high near 22. West northwest wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 31.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 1.
Thursday
Sunny, with a high near 11.
Thursday Night
Partly cloudy, with a low around -4.
Friday
A chance of snow. Partly sunny, with a high near 20.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
3:11 am CST Nov 30, 2025
Forecast Valid:
9am CST Nov 30, 2025-6pm CST Dec 6, 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