• Friday

    Aug 7

    91°Lo 77°

    Partly sunny

    Warning for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      25%
    • Hours of Precip
      1.5
    more
  • Saturday

    Aug 8

    91°Lo 76°

    Clouds and sun

    Warning for hair frizz
    • Wind
      Gust
      14 mph
    • Precip
      25%
    • Hours of Precip
      2.5
    more
  • Sunday

    Aug 9

    92°Lo 75°

    Partly sunny with a t-storm

    Warning for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      51%
    • Hours of Precip
      3.5
    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.