, °F

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Today

      Dec 7

      47° /35°
      Cloudy
      • Poor
      • for stargazing
      • Cloud Cover: 77%
      • Precip: 3%
      • Hours of Precip: 0.5
      More
    • Thu

      Dec 8

      45° /32°
      Clouds and sunny spells
      • Very Good
      • for stargazing
      • Cloud Cover: 0%
      • Precip: 9%
      • Hours of Precip: 0
      More
    • Fri

      Dec 9

      40° /26°F
      Windy with partial sunshine
      • Good
      • for stargazing
      • Cloud Cover: 20%
      • Precip: 25%
      • Hours of Precip: 0
    • Sat

      Dec 10

      37° /25°
      Clouds and sun
      • Good
      • for stargazing
      • Cloud Cover: 19%
      • Precip: 3%
      • Hours of Precip: 0
      More
    • Sun

      Dec 11

      40° /36°
      Turning cloudy
      • Poor
      • for stargazing
      • Cloud Cover: 99%
      • Precip: 85%
      • Hours of Precip: 3
      More

    Day

    40°Hi RealFeel® 28° Precipitation 21%
    Windy with partial sunshine
    • WNW 16 mph
    • Gusts: 28 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    26°Lo RealFeel® 17° Precipitation 25%
    Mainly clear
    • WNW 9 mph
    • Gusts: 17 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/9/2015
    High 40° 45° 66° (1991) 53°
    Low 26° 30° 16° (2002) 31°

    Sunrise/Sunset

    • Sunrise: 7:06 AM
    • Sunset: 4:24 PM
    • Duration: 9:18 hr

    Moonrise/Moonset

    • Moonrise: 1:38 PM
    • Moonset: 2:43 AM
    • Duration: 13:05 hr
    Astronomy

    Solunar Information for Port Jefferson, NY

    Wed, Dec 7
    First
    Wed, Dec 14
    Full
    Wed, Dec 21
    Last
    Thu, Dec 29
    New

    Fri. Stargazing