• Friday

    May 1

    65°Lo 45°

    Plenty of sunshine

    Poor for home energy
    • Avg
      RealFeel
      58°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      6 mph
    more
  • Saturday

    May 2

    71°Lo 52°

    Times of clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      75°
    • Wind
      Speed
      8 mph
    more
  • Sunday

    May 3

    72°Lo 56°

    A thunderstorm possible

    Poor for home energy
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      14 mph
    more
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Crystal Lake Weather Report

Sunshine to Prevail This Week in Chicago

April 28, 2015; 9:50 AM ET

Sunny skies and cooler conditions will be the rule this week in Chicago. more >

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Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Fri. Home Energy Efficiency

Fri. Degree Days

Fri. UV Index