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.

Fair

8°F

-13°C

Humidity 63%
Wind Speed N 8 mph
Barometer 30.40 in (1031.1 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 4 Dec 9:52 am CST
Extended Forecast for

Crystal Lake IL

  • Today

    Today: Sunny, with a high near 17. Wind chill values as low as -3. North northwest wind around 5 mph becoming calm.

    High: 17 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a temperature falling to near -2 by 9pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -16. South southwest wind 5 to 15 mph.

    Low: -2 °F⇑

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 26. Wind chill values as low as -6. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of snow before midnight. Cloudy, with a low around 19. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 27. West northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow before noon. Mostly sunny, with a high near 22.

    High: 22 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 17. Wind chill values as low as -3. North northwest wind around 5 mph becoming calm.
Tonight
Partly cloudy, with a temperature falling to near -2 by 9pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -16. South southwest wind 5 to 15 mph.
Friday
Partly sunny, with a high near 26. Wind chill values as low as -6. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of snow before midnight. Cloudy, with a low around 19. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.
Saturday
Partly sunny, with a high near 27. West northwest wind around 5 mph, with gusts as high as 10 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 11.
Sunday
A 30 percent chance of snow before noon. Mostly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Partly sunny, with a high near 22.
Monday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 13.
Tuesday
A chance of snow. Mostly cloudy, with a high near 31.
Tuesday Night
Snow likely. Cloudy, with a low around 19.
Wednesday
A chance of snow. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.36°W
Last Update:
10:01 am CST Dec 4, 2025
Forecast Valid:
10am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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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