• Friday

    Aug 7

    98°Lo 78°

    Mostly sunny and hot

    Warning for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      12%
    • Hours of Precip
      0
    more
  • Saturday

    Aug 8

    99°Lo 78°

    Abundant sunshine and hot

    Warning for hair frizz
    • Wind
      Gust
      16 mph
    • Precip
      8%
    • Hours of Precip
      0
    more
  • Sunday

    Aug 9

    99°Lo 78°

    Partly sunny and hot

    Warning for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      9%
    • Hours of Precip
      0
    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.