• Mostly cloudy 69°
    Ragweed Pollen Current Weather
    • Relative Humidity
      100%
    • Yesterday
      Temp
      66°
    • RealFeel
      73°
  • Today

    Sep 1

    Hi 81°

    A strong afternoon t-storm

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    Day Details >
  • Tomorrow

    Sep 2

    Hi 82°

    Clouds and sun; less humid

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    Day Details >
  • Wednesday

    Sep 3

    Hi 86°

    Partly sunny and more humid

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    Day Details >
Next

Thunderstorms, some strong, this afternoon through early this evening; storms can bring downpours, large hail and damaging winds

9/1 9/2 Now: 7:12am
AM 7-11
  • 7am Intermittent clouds 69° 40%
  • 8am Mostly cloudy 71° 34%
  • 9am Mostly cloudy 73° 34%
  • 10am Cloudy 74° 40%
  • 11am Rain 76° 51%
PM 6-11
  • 6pm Intermittent clouds 78° 32%
  • 7pm Intermittent clouds 75° 36%
  • 8pm Intermittent clouds 74° 47%
  • 9pm Mostly cloudy w/ t-storms 72° 51%
  • 10pm Intermittent clouds 71° 47%
  • 11pm Intermittent clouds 69° 34%
AM 12-5
  • 12am Intermittent clouds 68° 34%
  • 1am Intermittent clouds 67° 29%
  • 2am Intermittent clouds 66° 20%
  • 3am Intermittent clouds 65° 20%
  • 4am Intermittent clouds 64° 20%
  • 5am Intermittent clouds 64° 20%
Hourly Forecast >

Ottawa Pollen Levels - September 1

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    High

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Sep 01, 2014; 7:17 AM ET
Thunderstorms, some strong, this afternoon through early this evening; storms can bring downpours, large hail and damaging winds
Chicago, IL Weather Forecast

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Ottawa Weather Report

Severe Storms to Threaten Chicago on Labor Day

September 1, 2014; 4:02 AM ET

Chicago will become the target of severe thunderstorms as the Labor Day holiday weekend comes to an end, creating dangers for those with outdoor plans. more >

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