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.

Fair

41°F

5°C

Humidity 82%
Wind Speed Calm
Barometer 30.05 in (1018.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 9 Nov 12:52 am CST
Extended Forecast for

Crystal Lake IL

  • Overnight

    Overnight: Mostly clear, with a low around 36. Northwest wind around 5 mph becoming calm.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 58. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 43. Breezy.

    High: 43 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 36. Northwest wind around 5 mph becoming calm.
Monday
Partly sunny, with a high near 58. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 40. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 60. Northwest wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 38. Calm wind.
Veterans Day
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 53.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 36.
Thursday
A chance of showers. Mostly cloudy, with a high near 43. Breezy.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.36°W
Last Update:
12:21 am CST Nov 9, 2026
Forecast Valid:
12am CST Nov 9, 2026-6pm CST Nov 15, 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