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    • Today

      Jan 23

      40° /37°F
      Winds becoming strong
      • 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
    • Tue

      Jan 24

      44° /35°
      Cloudy, a little rain; breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Jan 25

      47° /41°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Jan 26

      50° /35°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Jan 27

      43° /31°
      Clouds and sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    40°Hi RealFeel® 25° Precipitation 80%
    Winds becoming strong; cooler with heavy rain developing; there may be flooding in some areas
    • ENE 23 mph
    • Gusts: 56 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0.56 in
    • Rain: 0.56 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 7 hrs
    • Hours of Rain: 7 hrs

    Night

    37°Lo RealFeel® 17° Precipitation 93%
    Winds gusting past 40 mph; rain
    • NE 25 mph
    • Gusts: 58 mph
    • Max UV Index: N/A
    • Thunderstorms: 2%
    • Precipitation: 0.53 in
    • Rain: 0.53 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 6 hrs
    • Hours of Rain: 6 hrs

    Port Jefferson Pollen Levels Jan 23

    • 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 1/23/2016
    High 40° 38° 55° (1999) 32°
    Low 37° 23° (1991) 26°

    Sunrise/Sunset

    • Sunrise: 7:11 AM
    • Sunset: 4:58 PM
    • Duration: 9:47 hr

    Moonrise/Moonset

    • Moonrise: 3:23 AM
    • Moonset: 1:35 PM
    • Duration: 10:12 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps