• Friday

    Feb 19

    42°Lo 25°

    Considerable cloudiness

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Saturday

    Feb 20

    49°Lo 29°

    Cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sunday

    Feb 21

    48°Lo 27°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
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Lancaster Weather Report

Boston: Polar vortex to smack region during Valentine's Day weekend

February 11, 2016; 2:14 AM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the Boston area during Valentine's Day weekend. more >

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