• Saturday

    Aug 30

    27°Lo 18°

    Mostly cloudy with a t-storm

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

    Aug 31

    27°Lo 17°

    Variably cloudy with showers

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
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Ottawa Weather Report

Long Range Clues through September

August 28, 2014; 11:32 PM ET

Some clues about the weather pattern through September. more >

Ottawa Weekend Weather Chat