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    Next 5 Days
    • Current Weather

      64° F
      Mostly cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 82%
      • Yesterday Temp: 54°
      • RealFeel: 64°
    • Tonight

      Apr 28

      49° Lo
      Some rain and a thunderstorm
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      } Day Details
    • Tomorrow

      Apr 29

      55° Hi
      Some rain and a thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    • Sunday

      Apr 30

      58° Hi
      Cool with rain and drizzle
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    Next 6 Hours
    • 8PM

      Apr 28

      63°
      Mostly cloudy
      Precip 40%
    • 9PM

      62°
      Cloudy
      Precip 34%
    • 10PM

      60°
      Cloudy
      Precip 40%
    • 11PM

      58°
      Thunderstorms
      Precip 51%
    • 12AM

      56°
      Cloudy
      Precip 47%
    • 1AM

      54°
      Cloudy
      Precip 43%

    Ottawa Pollen Levels Apr 28

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      High

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

     Damaging winds and tornadoes will threaten lives and property across the central U.S. this weekend.
    Nighttime thunderstorms to threaten central US

    Allergies Live Feed

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps