• Friday

    Sep 4

    95°Lo 70°

    Chance of a thunderstorm

    Unlikely for hair frizz
    • Wind
      Gust
      16 mph
    • Precip
      30%
    • Hours of Precip
      0
    more
  • Saturday

    Sep 5

    90°Lo 71°

    A p.m. t-storm possible

    Watch for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      30%
    • Hours of Precip
      0
    more
  • Sunday

    Sep 6

    89°Lo 73°

    A p.m. t-storm possible

    Warning for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      55%
    • Hours of Precip
      2
    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.