National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

A Few Clouds

23°F

-5°C

Humidity 81%
Wind Speed W 7 mph
Barometer 30.37 in (1029.6 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 30 Nov 5:52 pm CST
Extended Forecast for

Crystal Lake IL

  • Tonight

    Tonight: Partly cloudy, with a low around 4. West northwest wind around 5 mph becoming calm after midnight.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: Snow, mainly after 2pm. High near 26. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 26 °F

    Mostly Cloudy
    then Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 14. Southeast wind around 5 mph becoming calm. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 14 °F

    Snow then
    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 15. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow after noon. Cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 0.

    Low: 0 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 11.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -5.

    Low: -5 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 4. West northwest wind around 5 mph becoming calm after midnight.
Monday
Snow, mainly after 2pm. High near 26. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Monday Night
Snow, mainly before midnight. Low around 14. Southeast wind around 5 mph becoming calm. Chance of precipitation is 100%. 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 15. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 40 percent chance of snow after noon. Cloudy, with a high near 31.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 0.
Thursday
Sunny, with a high near 11.
Thursday Night
Partly cloudy, with a low around -5.
Friday
A chance of snow after noon. Mostly cloudy, with a high near 22.
Friday Night
A chance of snow. Mostly cloudy, with a low around 13.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 18.
Sunday
Mostly cloudy, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.36°W
Last Update:
3:11 pm CST Nov 30, 2025
Forecast Valid:
6pm CST Nov 30, 2025-6pm CST Dec 7, 2025
 
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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