Weather forecast for 10 days
Port Jefferson, NY

Weather forecast for the weekend

Saturday, May 3.

Partly Cloudy
5:45 am

7:52 pm
EDT
Partly Cloudy
72°F / 57°F
  • Wind: 14mph S
  • Humidity: 71%
  • Precip. probability: 24%
  • Precipitation: 0.2"
  • UV index: 7
On Saturday, in Port Jefferson, clouds and sunshine will alternate throughout the day.
The chance of rainfall is low, and light precipitation is expected. Predicted temperatures will peak at a pleasant 71.6°F and dip to a minimum of a mild 57.2°F.
On Saturday, the high of 71.6°F will be higher and more in line with June's typical maximum of 71.2°F than May's 62.6°F.
Sunrise will be at 5:45 am and sunset at 7:52 pm; the daylight will last for 14h and 7min.

Sunday, May 4.

Cloudy
5:44 am

7:53 pm
EDT
Cloudy
68°F / 55°F
  • Wind: 10mph S
  • Humidity: 76%
  • Precip. probability: 24%
  • Precipitation: 0.39"
  • UV index: 6
On Sunday, in Port Jefferson, overcast conditions are likely to persist.
With a low probability, light precipitation is expected. Temperature fluctuations between an agreeable 68°F and a mild 55.4°F are forecasted.
The expected high will be slightly warmer than May's standard temperature of 62.6°F.
Sunrise will be at 5:44 am and sunset at 7:53 pm; the daylight will last for 14h and 9min.

Frequently asked questions

What is the weather forecast for Port Jefferson for Saturday?
On Saturday, expect a partly sunny afternoon with variable cloud cover.
Will it rain on Saturday in Port Jefferson?
Light precipitation of 0.2" is predicted on Saturday. The likelihood of rainfall is 24%.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 71.6°F, while the minimum temperature will be 57.2°F.
What is the weather forecast for Port Jefferson for Sunday?
On Sunday, overcast skies are expected.
Will it rain on Sunday?
Light precipitation of 0.39" is anticipated on Sunday in Port Jefferson, New York. The possibility of rainfall is 24%.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 68°F, while the lowest temperature will be 55.4°F.
What is the weather forecast for Port Jefferson for the next ten days?
In Port Jefferson, a combination of dull and showery weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Thursday, Saturday through Tuesday and next Thursday in Port Jefferson. With substantial precipitation of 1.02", Tuesday will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 60.8°F and 73.4°F, while the minimum temperature will range between 48.2°F and 59°F.
What will be the warmest and the coldest days?
The warmest day will be tomorrow, with a maximum of 73.4°F. The coldest day will be Monday, with a maximum of 60.8°F.

Long-term weather forecast

ThuMay 1.
  • min.
  • 54°F
Showers Late
Showers Late
  • Wind: 10mph SSE
  • Humidity: 73%
  • UV index: 0
  • Precip. probability: 57%
  • Precipitation: 0.08"
  • 5:48 am 7:50 pm EDT
FriMay 2.
  • 73°F
  • 59°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Wind: 15mph SSW
  • Humidity: 71%
  • UV index: 6
  • Precip. probability: 23%
  • Precipitation: 0"
  • 5:46 am 7:51 pm EDT
SatMay 3.
  • 72°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph S
  • Humidity: 71%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0.2"
  • 5:45 am 7:52 pm EDT
SunMay 4.
  • 68°F
  • 55°F
Cloudy
Cloudy
  • Wind: 10mph S
  • Humidity: 76%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0.39"
  • 5:44 am 7:53 pm EDT
MonMay 5.
  • 61°F
  • 54°F
Rain
Rain
  • Wind: 16mph E
  • Humidity: 82%
  • UV index: 3
  • Precip. probability: 65%
  • Precipitation: 0.79"
  • 5:43 am 7:54 pm EDT
TueMay 6.
  • 63°F
  • 55°F
Rain
Rain
  • Wind: 14mph SE
  • Humidity: 82%
  • UV index: 3
  • Precip. probability: 74%
  • Precipitation: 1.02"
  • 5:42 am 7:55 pm EDT
WedMay 7.
  • 70°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WSW
  • Humidity: 64%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:40 am 7:56 pm EDT
ThuMay 8.
  • 64°F
  • 50°F
Showers
Showers
  • Wind: 11mph NNW
  • Humidity: 65%
  • UV index: 6
  • Precip. probability: 43%
  • Precipitation: 0.16"
  • 5:39 am 7:57 pm EDT
FriMay 9.
  • 63°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph NE
  • Humidity: 51%
  • UV index: 7
  • Precip. probability: 21%
  • Precipitation: 0"
  • 5:38 am 7:58 pm EDT
SatMay 10.
  • 66°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph ENE
  • Humidity: 53%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:37 am 7:59 pm EDT
Over the next ten days, a combination of cloud-filled and rain-soaked weather is predicted.
Rainfall is forecasted for Thursday, Saturday through Tuesday and next Thursday.
Temperature variation will be noticeable in the coming days. The temperature is expected to swing from 60.8°F up to 73.4°F, while the lowest temperature will be between 48.2°F and 59°F.
Expect the warmest day on Friday, with temperatures peaking at 73.4°F; the lowest daytime temperature of the period will be reached on Monday, peaking at 60.8°F.
Updated: May 1, 2025 @ 22:13:11 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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