• Friday

    May 15

    70°Lo 56°

    Overcast with a thunderstorm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Saturday

    May 16

    80°Lo 60°

    A morning shower in spots

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sunday

    May 17

    80°Lo 60°

    Partly sunny, a stray t-storm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
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Crystal Lake Weather Report

Chicago: Showers to Precede Late-Week Warmth

May 4, 2015; 4:47 PM ET

Showers and thunderstorms will frequent the Chicago area early this week before dry and warm conditions return to the city. more >

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The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.