• Friday

    Sep 5

    78°Lo 57°

    Not as warm with a t-storm

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

    Sep 6

    74°Lo 52°

    Partly sunny and pleasant

    Ragweed Pollen
    Weather
    • Precip
      11%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      29%
    more
  • Sunday

    Sep 7

    76°Lo 54°

    Sunny and beautiful

    Ragweed Pollen
    Weather
    • Precip
      13%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
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Ottawa Weather Report

Chicago: Cooler, Less Humid Air to Return by Late Week

September 2, 2014; 4:05 AM ET

While Labor Day marks an unofficial end to the summer, the Chicago area will see warm, humid conditions continue before temperatures slide late in the week. more >

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