• Friday

    May 29

    87°Lo 72°

    A stray thunderstorm

    Emergency for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      40%
    • Hours of Precip
      1
    more
  • Saturday

    May 30

    87°Lo 72°

    A thunderstorm possible

    Emergency for hair frizz
    • Wind
      Gust
      17 mph
    • Precip
      30%
    • Hours of Precip
      1
    more
  • Sunday

    May 31

    87°Lo 68°

    Cloudy, a t-storm possible

    Warning for hair frizz
    • Wind
      Gust
      16 mph
    • Precip
      30%
    • Hours of Precip
      0.5
    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.