• Early AM

    Dec 19

    Lo 20°

    Mostly cloudy

    Asthma Weather
    • Hi
      RealFeel
      28°
    • UV
      1 - Low
    • Air Qual.
      Good
    more
  • Today

    Dec 19

    32°Lo 23°

    More clouds than sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      37°
    • UV
      1 - Low
    • Air Qual.
      Moderate
  • Sat

    Dec 20

    35°Lo 26°

    Mostly cloudy

    Beneficial weather for asthma
    • Hi
      RealFeel
      34°
    • UV
      1 - Low
    • Air Qual.
      Moderate
    more
  • Sun

    Dec 21

    38°Lo 29°

    Mostly cloudy

    Beneficial weather for asthma
    • Hi
      RealFeel
      29°
    • UV
      1 - Low
    • Cloud
      Cover
      92%
    more
  • Mon

    Dec 22

    42°Lo 35°

    Overcast with afternoon rain

    Neutral weather for asthma
    • Hi
      RealFeel
      31°
    • UV
      1 - Low
    • Cloud
      Cover
      90%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
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8pm 9pm 10pm 11pm Sat
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  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Partly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Temp (°F) 27° 27° 26° 25° 25° 25° 24° 25°
RealFeel® 29° 29° 29° 28° 27° 26° 26° 27°
Humidity 68% 69% 71% 72% 73% 73% 73% 73%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
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Snow
 
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  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Wind (mph) 1 W 1 W 1 N 1 WSW 1 SW 1 SW 1 SW 1 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 35% 65% 90% 98% 95% 90% 88% 90%
Dew Point 18° 18° 18° 18° 17° 17° 17° 17°
Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F

Temperature History - Dec 19

more Historical Weather Data >
  Today Normal Record 12/19/2013
High 32° 30° N/A 32°
Low 23° 14° N/A 20°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:18 AM with 9:05 of sunlight, then sets at 4:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:29 AM with 10:18 of moolight, then sets at 2:47 PM

Crystal Lake Weather Report

Chicago: White Christmas in the Offing

December 19, 2014; 2:07 AM ET

While the next couple of days will be tranquil for the Chicago area, Christmas Eve could deliver enough snow to blanket the city. more >

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Fri. Air Quality

Fri. Asthma Risk

Fri. UV Index