• Mostly sunny 73°
    Ragweed Pollen Current Weather
    • Relative Humidity
      51%
    • Yesterday
      Temp
      70°
    • RealFeel
      73°
  • Tonight

    Jul 11

    Lo 57°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    Day Details >
  • Tomorrow

    Jul 12

    Hi 82°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    Day Details >
  • Sunday

    Jul 13

    Hi 83°

    Thunderstorms, some severe

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    Day Details >
Next

Thunderstorms, some severe, Sunday morning through Monday afternoon; storms can bring downpours, large hail and damaging winds

7/11 7/12 Now: 6:52pm
PM 6-10
  • 6pm Mostly sunny 76° 0%
  • 7pm Mostly sunny 74° 0%
  • 8pm Mostly sunny 71° 0%
  • 9pm Mostly clear 67° 0%
  • 10pm Clear 65° 0%
AM 5-10
  • 5am Mostly clear 58° 0%
  • 6am Mostly sunny 59° 0%
  • 7am Mostly sunny 60° 0%
  • 8am Mostly sunny 64° 0%
  • 9am Mostly sunny 69° 0%
  • 10am Mostly sunny 72° 0%
AM 11-4
  • 11am Mostly sunny 75° 0%
  • 12pm Mostly sunny 79° 0%
  • 1pm Mostly sunny 80° 0%
  • 2pm Mostly sunny 81° 7%
  • 3pm Mostly sunny 82° 7%
  • 4pm Mostly sunny 82° 7%
Hourly Forecast >

Ontario Pollen Levels - July 11

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Ontario

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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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.

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps