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Weather Forecast for Port Jefferson, New York

If you planning to travel to Port Jefferson, New York, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 10:56 AM. The temperature feels like 44.5 with a humidity level of 67 so dress accordingly. Cloud coverage is 25 percent with visibility at 11.2 percent. Today’s UV index is 6, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 4 MPH. At the end of the day don’t miss the sunset at 11:04 PM.


Fahrenheit / Celsius
Today 3/19
Scattered clouds

Wednesday 3/19 Weather forecast for Port Jefferson, New York, Scattered clouds
45°F
High: 55°F
Low: 41°F
Precipitation: 0%
Thursday 3/20
Overcast clouds

Thursday 3/20 Weather forecast for Port Jefferson, New York, Overcast clouds
46°F
High: 51°F
Low: 43°F
Precipitation: 35%
Friday 3/21
Moderate rain

Friday 3/21 Weather forecast for Port Jefferson, New York, Moderate rain
45°F
High: 48°F
Low: 38°F
Precipitation: 85%
Saturday 3/22
Scattered clouds

Saturday 3/22 Weather forecast for Port Jefferson, New York, Scattered clouds
44°F
High: 53°F
Low: 34°F
Precipitation: 0%
Sunday 3/23
Scattered clouds

Sunday 3/23 Weather forecast for Port Jefferson, New York, Scattered clouds
40°F
High: 45°F
Low: 36°F
Precipitation: 0%
Monday 3/24
Moderate rain

Monday 3/24 Weather forecast for Port Jefferson, New York, Moderate rain
43°F
High: 48°F
Low: 43°F
Precipitation: 90%

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