• Early AM

    Dec 21

    Lo 26°

    A flurry

    Sinus Headache Weather
    • Hi
      RealFeel
      32°
    • UV
      1 - Low
    • Cloud
      Cover
      99%
    more
  • Today

    Dec 21

    38°Lo 29°

    Mostly cloudy with a flurry

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      28°
    • UV
      1 - Low
    • Cloud
      Cover
      90%
  • Mon

    Dec 22

    42°Lo 38°

    A morning shower, then rain

    At High Risk weather for sinus headaches
    • Hi
      RealFeel
      27°
    • UV
      1 - Low
    • Cloud
      Cover
      95%
    more
  • Tue

    Dec 23

    47°Lo 31°

    Cloudy with a shower

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      43°
    • UV
      1 - Low
    • Cloud
      Cover
      95%
    more
  • Wed

    Dec 24

    39°Lo 27°

    Snow showers; windy, colder

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      25°
    • UV
      1 - Low
    • Cloud
      Cover
      87%
    more
Next Previous
Cloudy 28° RealFeel® 27°

N

E

S

W

  • Humidity: 99%
  • Pressure: 30.23 in
  • UV Index: 0
  • Cloud Cover: 100%
  • Ceiling: 2700 ft
  • Dew Point: 27° F
  • Visibility: 7 mi
6 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:19 AM with 9:05 of sunlight, then sets at 4:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:33 AM with 9:59 of moolight, then sets at 4:32 PM

Temperature Summary - 4:00 AM

  Temp (°F)
Now 28°
Yesterday 32°
RealFeel® 27°
RealFeel® Shade 27°
Wind Chill 21°
Dew Point 27°
  Hi / Lo
Previous 6 Hours 30°
  28°
Previous 12 Hours 32°
  28°
Previous 24 Hours 33°
  25°

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 38° 29° N/A 32°
Low 29° 14° N/A 24°

Precipitation Summary - 4:00 AM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0
Previous 6 Hours 0
Previous 9 Hours 0
Previous 12 Hours 0
Previous 18 Hours 0
Previous 24 Hours 0

Crystal Lake Weather Report

Chicago: Chance for a White Christmas as Pattern Turns Unsettled

December 21, 2014; 3:18 AM ET

There's a chance for a white Christmas around Chicagoland as next week turns unsettled. more >

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!

Sun. Sinus Headache

Sun. UV Index