• Friday

    Mar 6

    28°Lo 23°

    Sunny and breezy

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

    Mar 7

    42°Lo 22°

    Chilly with clouds and sun

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      46%
    more
  • Sunday

    Mar 8

    41°Lo 27°

    Chilly with clouds and sun

    Ragweed Pollen
    Weather
    • Precip
      9%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      68%
    more
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Ottawa Weather Report

Chicago: Bitter Cold to Depart by the Weekend

March 4, 2015; 6:53 AM ET

While frigid conditions will encompass the Chicago area over the next couple of days, the weekend will offer a break from the bitter cold. more >

Allergies Live Feed

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Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Fri. Dust & Dander

Fri. Wind Maps