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    • Today

      Dec 16

      38° /19°
      Partly sunny and breezy
      • 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: Low
      More
    • Sun

      Dec 17

      35° /25°F
      Some sun, then clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Mon

      Dec 18

      46° /36°
      Mostly cloudy and milder
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Dec 19

      51° /35°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Dec 20

      43° /26°
      Mostly sunny and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    35°Hi RealFeel® 37° Precipitation 3%
    Some sunshine giving way to clouds
    • Winds from the
    • NW 5 mph
    • Gusts: 8 mph
    • Max UV Index: 2 (Low)
    • 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

    25°Lo RealFeel® 27° Precipitation 56%
    A bit of ice in the evening, then a shower in spots after temperatures rise above freezing late
    • Winds from the
    • WSW 2 mph
    • Gusts: 5 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.05 in
    • Rain: 0.02 in
    • Snow: 0 in
    • Ice: 0.04 in
    • Hours of Precipitation: 2.5 hrs
    • Hours of Rain: 0.5 hrs

    Riverhead Pollen Levels Dec 17

    • 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 12/17/2016
    High 35° 43° N/A 43°
    Low 25° 24° N/A 23°

    Sunrise/Sunset

    • Sunrise: 7:09 AM
    • Sunset: 4:24 PM
    • Duration: 9:15 hr

    Moonrise/Moonset

    • Moonrise: 6:19 AM
    • Moonset: 4:19 PM
    • Duration: 10:00 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps