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    • Tonight

      May 24

      57° Lo F
      Periods of rain
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
    • Thu

      May 25

      66° /54°
      A passing shower or two
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Fri

      May 26

      73° /59°
      Warmer with clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Sat

      May 27

      77° /61°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Sun

      May 28

      77° /57°
      A couple of thunderstorms
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More

    Day

    69°Hi RealFeel® 70° Precipitation 60%
    Periods of rain and a thunderstorm this morning; cloudy and not as warm
    • E 10 mph
    • Gusts: 30 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 57%
    • Precipitation: 0.09 in
    • Rain: 0.09 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1.5 hrs
    • Hours of Rain: 1.5 hrs

    Night

    57°Lo RealFeel® 52° Precipitation 75%
    Periods of rain
    • NE 8 mph
    • Gusts: 16 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0.22 in
    • Rain: 0.22 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Ottawa Pollen Levels May 24

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      High

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/24/2016
    High 69° 74° 91° (1925) 82°
    Low 57° 52° 33° (1935) 54°

    Sunrise/Sunset

    • Sunrise: 6:11 AM
    • Sunset: 8:55 PM
    • Duration: 14:44 hr

    Moonrise/Moonset

    • Moonrise: 5:38 AM
    • Moonset: 7:36 PM
    • Duration: 13:58 hr
    Astronomy

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps