• Tonight

    Feb 11

    Lo 16°

    Breezy with patchy clouds

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Feb 12

    26°Lo 19°

    Sun, then clouds; cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Feb 13

    22°Lo 2°

    A snow squall in the morning

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Feb 14

    18°Lo 7°

    Sunshine and frigid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Feb 15

    28°Lo 21°

    Cloudy and not as cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Mostly sunny 24° Lo 17° RealFeel® 20° / 6°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 46%
  • Cloud Cover: 25%
  • Dew Point: 2° F
  • Visibility: 10 mi
9 mph

Temperature History - Feb 12

more Historical Weather Data >
  Today Normal Record 2/12/2015
High 26° 40° 55° (1984) 36°
Low 19° 25° 10° (2014) 19°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:51 AM with 10:32 of sunlight, then sets at 5:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:15 AM with 13:08 of moolight, then sets at 10:23 PM

Port Jefferson Weather Report

NYC: Polar vortex to smack region during Valentine's Day weekend

February 11, 2016; 8:35 PM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the New York City area during Valentine's Day weekend. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps