• Mostly cloudy 79°
    Ragweed Pollen Current Weather
    • Relative Humidity
      93%
    • Yesterday
      Temp
      76°
    • RealFeel
      94°
  • Tonight

    Jul 12

    Lo 69°

    A strong thunderstorm

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    Day Details >
  • Tomorrow

    Jul 13

    Hi 84°

    A morning t-storm in spots

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    Day Details >
  • Monday

    Jul 14

    Hi 75°

    Thundershower

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

Watch for a strong thunderstorm tonight; storms can bring downpours, large hail and damaging winds

7/12 7/13 Now: 8:38pm
PM 8-12
  • 8pm Mostly cloudy 79° 17%
  • 9pm Mostly cloudy 78° 17%
  • 10pm Cloudy 77° 22%
  • 11pm Cloudy 75° 47%
  • 12am Thunderstorms 74° 51%
AM 7-12
  • 7am Cloudy 70° 47%
  • 8am Mostly cloudy 72° 34%
  • 9am Intermittent clouds 73° 34%
  • 10am Intermittent clouds 76° 37%
  • 11am Intermittent clouds 78° 47%
  • 12pm Mostly cloudy w/ t-storms 77° 51%
PM 1-6
  • 1pm Intermittent clouds 80° 47%
  • 2pm Intermittent clouds 82° 20%
  • 3pm Intermittent clouds 84° 20%
  • 4pm Intermittent clouds 83° 20%
  • 5pm Intermittent clouds 82° 20%
  • 6pm Intermittent clouds 80° 20%
Hourly Forecast >

Ottawa Pollen Levels - July 12

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Ottawa

Storms Slam Northeast with Rain, Flooding

Jul 11, 2014; 3:50 PM ET Severe storms slammed the Northeast with rain and flooding causing widespread damage. Continued storm activity will bring hail, damaging winds and possible flooding to the area early next week.

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Top Story

Ottawa Weather Report

Chicago Faces Strong Storms, to Turn Septemberlike

July 12, 2014; 8:59 AM ET

Strong thunderstorms will threaten Chicago this weekend before the city gets a taste of September. more >

Allergies Live Feed

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Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps