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    • Today

      Apr 27

      63° /50°F
      Partly sunny and warmer
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
    • Fri

      Apr 28

      69° /47°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Sat

      Apr 29

      52° /45°
      Some rain and a thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Sun

      Apr 30

      54° /39°
      Cool with rain and drizzle
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      May 1

      61° /46°
      Sunshine, breezy and cool
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    63°Hi RealFeel® 70° Precipitation 25%
    Partly sunny and warmer
    • WSW 7 mph
    • Gusts: 10 mph
    • Max UV Index: 7 (High)
    • Thunderstorms: 6%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    50°Lo RealFeel® 42° Precipitation 66%
    Periods of rain and a thunderstorm
    • ENE 8 mph
    • Gusts: 13 mph
    • Max UV Index: N/A
    • Thunderstorms: 30%
    • Precipitation: 0.32 in
    • Rain: 0.32 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 4 hrs
    • Hours of Rain: 4 hrs

    Ottawa Pollen Levels Apr 27

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

      High

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 4/27/2016
    High 63° 68° 93° (1989) 71°
    Low 50° 47° 31° (1920) 50°

    Sunrise/Sunset

    • Sunrise: 6:29 AM
    • Sunset: 8:09 PM
    • Duration: 13:40 hr

    Moonrise/Moonset

    • Moonrise: 7:38 AM
    • Moonset: 9:44 PM
    • Duration: 14:06 hr
    Astronomy

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps