Weather forecast for 10 days
Port Jefferson, NY

Weather forecast for the weekend

Saturday, Apr 12.

Rain / Wind
6:15 am

7:30 pm
EDT
Rain / Wind
45°F / 39°F
  • Wind: 23mph NE
  • Humidity: 76%
  • Precip. probability: 86%
  • Precipitation: 0.55"
  • UV index: 3
On Saturday, April 12, expect a mix of showers and gusty winds.
With a high probability, moderate precipitation is anticipated. Minor temperature variations are predicted, peaking at a maximum of a brisk 44.6°F and dropping to a minimum of an icy 39.2°F.
Weather conditions lean colder, with the temperature tracking March's average high of 43.9°F.
Sunrise will be at 6:15 am and sunset at 7:30 pm; the daylight will last for 13h and 15min.

Sunday, Apr 13.

Showers
6:13 am

7:31 pm
EDT
Showers
50°F / 43°F
  • Wind: 14mph N
  • Humidity: 72%
  • Precip. probability: 48%
  • Precipitation: 0.39"
  • UV index: 3
On Sunday, April 13, expect showers through the day, with the rain easing off by evening.
The chance of rainfall is low, and light precipitation is anticipated. Temperature measurements will peak at a cool 50°F, with a slight decrease to a low of a brisk 42.8°F.
The predicted peak temperature will reflect the average April high of 52.9°F.
Sunrise will be at 6:13 am and sunset at 7:31 pm; the daylight will last for 13h and 17min.

Frequently asked questions

What is the weather forecast for Port Jefferson for Saturday?
On Saturday, in Port Jefferson, expect gusty winds along with periods of rain.
Will it rain on Saturday?
With a probability of 86%, moderate precipitation of 0.55" is forecasted on Saturday.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 44.6°F, while the lowest temperature will be 39.2°F.
What is the weather forecast for Port Jefferson for Sunday?
On Sunday, in Port Jefferson, showers are expected, with occasional breaks in the rain throughout the day.
Will it rain on Sunday?
Light precipitation of 0.39" is predicted on Sunday. The possibility of rainfall is 48%.
What will be the maximum temperature on Sunday?
On Sunday, the maximum temperature in Port Jefferson will be 50°F, while the minimum temperature will be 42.8°F.
What is the weather forecast for Port Jefferson for the next ten days?
In Port Jefferson, a combination of overcast, damp and mostly clear weather is expected for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on Friday through Sunday and Tuesday in Port Jefferson. Saturday, with moderate precipitation of 0.55", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 44.6°F and 64.4°F, as the minimum temperature will vary between 37.4°F and 50°F.
What will be the warmest and the coldest days?
Tuesday will be the warmest day, with a maximum temperature of 64.4°F. The coldest day will be Saturday, with a maximum of 44.6°F.

Long-term weather forecast

ThuApr 10.
  • 50°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 13mph SE
  • Humidity: 57%
  • UV index: 6
  • Precip. probability: 14%
  • Precipitation: 0"
  • 6:18 am 7:28 pm EDT
FriApr 11.
  • 48°F
  • 39°F
Showers
Showers
  • Wind: 16mph ENE
  • Humidity: 75%
  • UV index: 3
  • Precip. probability: 61%
  • Precipitation: 0.12"
  • 6:17 am 7:29 pm EDT
SatApr 12.
  • 45°F
  • 39°F
Rain / Wind
Rain / Wind
  • Wind: 23mph NE
  • Humidity: 76%
  • UV index: 3
  • Precip. probability: 86%
  • Precipitation: 0.55"
  • 6:15 am 7:30 pm EDT
SunApr 13.
  • 50°F
  • 43°F
Showers
Showers
  • Wind: 14mph N
  • Humidity: 72%
  • UV index: 3
  • Precip. probability: 48%
  • Precipitation: 0.39"
  • 6:13 am 7:31 pm EDT
MonApr 14.
  • 63°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 54%
  • UV index: 6
  • Precip. probability: 5%
  • Precipitation: 0.12"
  • 6:12 am 7:32 pm EDT
TueApr 15.
  • 64°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Wind: 16mph WSW
  • Humidity: 55%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • 6:10 am 7:33 pm EDT
WedApr 16.
  • 50°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Wind: 17mph WNW
  • Humidity: 47%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:09 am 7:34 pm EDT
ThuApr 17.
  • 54°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Wind: 14mph WNW
  • Humidity: 45%
  • UV index: 7
  • Precip. probability: 0%
  • Precipitation: 0"
  • 6:07 am 7:35 pm EDT
FriApr 18.
  • 57°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 13mph SW
  • Humidity: 53%
  • UV index: 7
  • Precip. probability: 19%
  • Precipitation: 0"
  • 6:06 am 7:36 pm EDT
SatApr 19.
  • 57°F
  • 45°F
Showers
Showers
  • Wind: 13mph SSW
  • Humidity: 65%
  • UV index: 6
  • Precip. probability: 34%
  • Precipitation: 0"
  • 6:04 am 7:37 pm EDT
Looking ahead, conditions suggest a period of overcast, rainy and clear weather is forecasted.
Rainfall is predicted for Friday through Sunday and Tuesday.
Noticeable swings in temperature are expected across the forecast period. The maximum temperature will vary between 44.6°F and 64.4°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 37.4°F and 50°F.
Tuesday is expected to be the warmest, reaching up to 64.4°F; expect the coldest day on Saturday with a high of 44.6°F.
Updated: Apr 10, 2025 @ 05:45:05 UTC
Published by: Weather U.S. | About Us
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