• Friday

    May 8

    67°Lo 52°

    Partly sunny and pleasant

    Unlikely for hair frizz
    • Wind
      Gust
      15 mph
    • Precip
      13%
    • Hours of Precip
      0
    more
  • Saturday

    May 9

    73°Lo 54°

    Partly sunny and mild

    Watch for hair frizz
    • Wind
      Gust
      16 mph
    • Precip
      25%
    • Hours of Precip
      1.5
    more
  • Sunday

    May 10

    62°Lo 45°

    Cloudy, a little rain; cooler

    Watch for hair frizz
    • Wind
      Gust
      21 mph
    • Precip
      56%
    • Hours of Precip
      11
    more
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The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.