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Port Jefferson, NY 11777   Weather, Extended Forecast and Hour-by-Hour Forecast

Weather Conditions

38°
M/SUNNY

Updated: 5:45 AM

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7-day Forecast for Port Jefferson

  • Daytime
  • Nighttime
04/17
Thu
47°
Sunny to partly cloudy, breezy and chilly
Feels Like: 42°
Winds: 16mph E
33° Feels like: 26°
Winds: 12mph NE
04/18
Fri
49°
Chilly with more clouds than sun
Feels Like: 49°
Winds: 9mph ESE
39° Feels like: 40°
Winds: 4mph N
04/19
Sat
60°
Milder with intervals of clouds and sunshine
Feels Like: 59°
Winds: 11mph NNW
38° Feels like: 29°
Winds: 11mph NE
04/20
Sun
56°
Intervals of clouds and sun
Feels Like: 62°
Winds: 10mph ENE
39° Feels like: 34°
Winds: 8mph E
04/21
Mon
58°
Partly sunny
Feels Like: 59°
Winds: 10mph SSE
44° Feels like: 41°
Winds: 7mph SW
04/22
Tue
62°
Some sunshine giving way to clouds with a passing shower
Feels Like: 65°
Winds: 8mph SSW
46° Feels like: 40°
Winds: 7mph WSW
04/23
Wed
63°
Mostly cloudy with a passing shower
Feels Like: 65°
Winds: 8mph NW
44° Feels like: 34°
Winds: 15mph NNW

24 Hour Forecast for Port Jefferson

  • 9am
  • 10am
  • 11am
  • 12pm
  • 1pm
  • 2pm
  • Conditions
  • Temperature
  • 39°
  • 39°
  • 41°
  • 44°
  • 45°
  • 46°
  • Cloud Cover
  • 7%
  • 7%
  • 6%
  • 7%
  • 8%
  • 45%
  • Feels Like
  • 29°
  • 31°
  • 35°
  • 39°
  • 41°
  • 41°
  • Dew Point
  • 21°
  • 20°
  • 20°
  • 22°
  • 22°
  • 23°
  • Humidity
  • 50%
  • 46%
  • 43%
  • 41%
  • 41%
  • 41%
  • Wind Direction
  • NE
  • NE
  • NE
  • NE
  • ENE
  • ENE
  • Wind Speed
  • 16
  • 17
  • 17
  • 17
  • 17
  • 17
  • Precipitation
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0