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

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Overcast

22°F

-6°C

Humidity 89%
Wind Speed S 14 mph
Barometer 29.98 in (1016.5 mb)
Dewpoint 19°F (-7°C)
Visibility 7.00 mi
Wind Chill9°F (-13°C)
Last update 3 Dec 12:52 am CST
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Patchy blowing snow. Cloudy, with a low around 19. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 19 °F

    Patchy
    Blowing Snow

  • Wednesday

    Wednesday: A slight chance of snow before 10am, then a chance of snow showers between 10am and 3pm. Patchy blowing snow before 9am. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 31 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -15. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: -2 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 13. Wind chill values as low as -16. North northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 13 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -4. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -4 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow

Detailed Forecast

Overnight
Patchy blowing snow. Cloudy, with a low around 19. South southwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of snow before 10am, then a chance of snow showers between 10am and 3pm. Patchy blowing snow before 9am. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -15. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 13. Wind chill values as low as -16. North northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around -4. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 22.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14.
Saturday
Partly sunny, with a high near 25.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12.
Sunday
A chance of snow. Mostly cloudy, with a high near 24.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 24.
Monday Night
A chance of snow. Cloudy, with a low around 16.
Tuesday
A chance of snow. Mostly cloudy, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.36°W
Last Update:
12:26 am CST Dec 3, 2025
Forecast Valid:
12am CST Dec 3, 2025-6pm CST Dec 9, 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