Weather forecast for 10 daysPort Jefferson Station, NY

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 55°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNE 39°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:07 am EDT
  • Sunset: 6:07 pm EDT
  • ▼
Today, sunny skies are in store, with excellent visibility.
The temperature is expected to oscillate between a maximum of a moderate 55.4°F and a minimum of a chilly 44.6°F.
On today, conditions will be colder with a temperature more like November's typical high of 51.8°F.
Sunrise was at 7:07 am and sunset will be at 6:07 pm; the daylight will last for 11h and 1min.

10-day overview

Daily temperatures

Warmest day: Tuesday 66°C.
Coldest day: today 55°C.

Chance of precipitation

Highest chance: Wednesday 23%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 55°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNE 39°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:07 am EDT
  • Sunset: 6:07 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 16mphNE 38°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:05 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 66°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 19mphNNE 24°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 6:04 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 59°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 19mphNNE 33°
  • Humidity: 64%
  • UV index: 4
  • Sunrise: 7:10 am EDT
  • Sunset: 6:03 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 14mphN 9°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:11 am EDT
  • Sunset: 6:01 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 57°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 15mphNNE 13°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:12 am EDT
  • Sunset: 6:00 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 59°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphNE 34°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:13 am EDT
  • Sunset: 5:58 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 63°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 7mphNW 326°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:15 am EDT
  • Sunset: 5:57 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 64°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphNW 311°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:16 am EDT
  • Sunset: 5:56 pm EDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 61°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 11mphN 2°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:17 am EDT
  • Sunset: 5:54 pm EDT
  • ▼
Forecasts for the ten-day outlook show that primarily sun-filled and occasionally cloud-filled weather is predicted.
Rain is not anticipated in Port Jefferson Station in the upcoming days.
In the coming days, the highest temperature will vary between 55.4°F and 66.2°F, while the forecast minimum temperature falls between 41°F and 50°F.
The warmest day will be Tuesday, with a maximum of 66.2°F; today is the coldest day, with a maximum temperature of 55.4°F.
Updated: Oct 18, 2026 @ 16:31:00 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, the forecast calls for abundant sunshine.

Today, the highest temperature will be 55.4°F, while the lowest temperature will be 44.6°F.
Today, the maximum temperature will be a couple of degrees lower than the average highest temperature in October. Today, the lowest temperature will be significantly lower than the average low of 55.4°F.

On Sunday, in Port Jefferson Station, sunrise was at 7:07 am and sunset will be at 6:07 pm (EDT).

In Port Jefferson Station, New York, today, there will be 11h and 1min of daylight.