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    • Tonight

      Oct 20

      47° Lo F
      Clear to partly cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Oct 21

      73° /53°
      Mostly sunny and warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 22

      75° /57°
      High clouds and very warm
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Oct 23

      72° /63°
      Chance of a p.m. shower
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Oct 24

      68° /50°
      Not as warm with rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    66°Hi RealFeel® 67° Precipitation 4%
    Brilliant sunshine
    • Winds from the
    • W 8 mph
    • Gusts: 12 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    47°Lo RealFeel® 45° Precipitation 3%
    Clear to partly cloudy
    • Winds from the
    • SSW 6 mph
    • Gusts: 8 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Ontario Pollen Levels Oct 20

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

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/20/2016
    High 66° 58° 79° (1971) 57°
    Low 47° 40° 20° (1972) 53°

    Sunrise/Sunset

    • Sunrise: 7:29 AM
    • Sunset: 6:19 PM
    • Duration: 10:50 hr

    Moonrise/Moonset

    • Moonrise: 8:06 AM
    • Moonset: 7:11 PM
    • Duration: 11:05 hr
    Astronomy

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps