• Tonight

    Aug 28

    Lo 70°

    Mostly clear and humid

    Common Cold Weather
    • Avg
      Temp
      77°
    • Avg
      RealFeel
      79°
    • Hi
      RealFeel
      89°
    more
  • Mon

    Aug 29

    88°Lo 68°

    Partly sunny

    Beneficial weather for colds
    • Avg
      Temp
      78°
    • Avg
      RealFeel
      79°
    • Hi
      RealFeel
      93°
  • Tue

    Aug 30

    80°Lo 68°

    Sunny

    Beneficial weather for colds
    • Avg
      Temp
      74°
    • Avg
      RealFeel
      79°
    • Hi
      RealFeel
      89°
    more
  • Wed

    Aug 31

    84°Lo 69°

    Partly sunny and very warm

    Beneficial weather for colds
    • Avg
      Temp
      77°
    • Avg
      RealFeel
      82°
    • Hi
      RealFeel
      92°
    more
  • Thu

    Sep 1

    81°Lo 64°

    Partly sunny and less humid

    Beneficial weather for colds
    • Avg
      Temp
      73°
    • Avg
      RealFeel
      71°
    • Hi
      RealFeel
      81°
    more
Next Previous
Hi 88° RealFeel® 93° Precipitation 6%

Day

N

E

S

W

  • WNW 8 mph
  • Gusts: 12 mph

Partly sunny; less humid in the afternoon

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 68° RealFeel® 65° Precipitation 10%

Night

N

E

S

W

  • N 6 mph
  • Gusts: 10 mph

Mainly clear

  • 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

Temperature History - Aug 29

more Historical Weather Data >
  Today Normal Record 8/29/2015
High 88° 79° 91° (2010) 82°
Low 68° 64° 46° (1986) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:17 AM with 13:11 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:25 AM with 14:25 of moolight, then sets at 5:50 PM

Port Jefferson Weather Report

September to start on cooler, less humid note in northeastern US

August 28, 2016; 9:28 PM ET

Brief relief from heat and humidity will arrive in the northeastern United States at the start of September. more >

Flu Season is Just Around the Corner

Sep 11, 2012; 2:00 PM ET The peak of flu season may not be until January, but preparations should begin now. Adrienne Veilleux has more.

Mon. Cold & Flu

Mon. UV Index