Weather forecast for todayPort Jefferson, NY
Weather forecast for today
Current condition 1:56 pm EDT
- 52°F
- Feels like:46°F
Partly Cloudy
- Precipitation: 0"
- Wind: 18mphNNW 340°
- Humidity: 53%
- Dewpoint: 34°F
- Pressure: 30.16"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
In Port Jefferson, currently, the sky features a blend of clouds and blue patches.
The temperature is a fresh 51.8°F, the real-feel reading is assessed at a brisk 46.4°F. The current temperature is at its highest of the day.
The temperature is a fresh 51.8°F, the real-feel reading is assessed at a brisk 46.4°F. The current temperature is at its highest of the day.
Saturday Oct 17, 2026
- 52°F
- 41°F
Partly Cloudy / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 21mphNNW 348°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:06 am EDT
- Sunset: 6:09 pm EDT
- details ▼
Today, in Port Jefferson, cool winds will move through a partly cloudy sky.
Temperatures are forecasted to range from a maximum of a cool 51.8°F to a minimum of an icy 41°F.
Today, it will be colder with a forecast high that reflects November's climate of 51.8°F.
Sunrise was at 7:06 am and sunset will be at 6:09 pm; the daylight will last for 11h and 3min.
Temperatures are forecasted to range from a maximum of a cool 51.8°F to a minimum of an icy 41°F.
Today, it will be colder with a forecast high that reflects November's climate of 51.8°F.
Sunrise was at 7:06 am and sunset will be at 6:09 pm; the daylight will last for 11h and 3min.
Hourly overview
Hourly temperatures
Warmest period: 2 pm - 5 pm 52°C.
Coldest period: 9 pm - 11 pm 46°C.
Coldest period: 9 pm - 11 pm 46°C.
Chance of precipitation
Highest chance: 2 pm - 11 pm 0%.
Hourly weather forecast
- 2 pm
- 52°F
- Feels like:45°F
Partly Cloudy / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 22mphNNW 347°
- Humidity: 51%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 3 pm
- 52°F
- Feels like:45°F
Partly Cloudy / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 21mphNNW 348°
- Humidity: 48%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 52°F
- Feels like:45°F
Partly Cloudy / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 21mphNNW 347°
- Humidity: 46%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 52°F
- Feels like:45°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 19mphNNW 349°
- Humidity: 44%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 50°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 19mphN 349°
- Humidity: 47%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:09 pm
- 7 pm
- 48°F
- Feels like:41°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 19mphN 353°
- Humidity: 49%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 48°F
- Feels like:41°F
Clear / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 20mphN 354°
- Humidity: 51%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 46°F
- Feels like:39°F
Clear / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 21mphN 357°
- Humidity: 51%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:39°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 18mphN 359°
- Humidity: 52%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 46°F
- Feels like:39°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphN 359°
- Humidity: 54%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
For the rest of the day, cloudy skies are expected.
The temperature will vary between the lowest temperature of 46.4°F and the highest temperature of 51.8°F. The feels-like temperature will vary between the lowest temperature of 39.2°F and the highest temperature of 44.6°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature today will be more consistent with November's average high of 51.8°F than October's usual of 62.6°F. Today, the overnight low is also more close to November's usual minimum of 44.1°F than October's 55.4°F.
The temperature will vary between the lowest temperature of 46.4°F and the highest temperature of 51.8°F. The feels-like temperature will vary between the lowest temperature of 39.2°F and the highest temperature of 44.6°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature today will be more consistent with November's average high of 51.8°F than October's usual of 62.6°F. Today, the overnight low is also more close to November's usual minimum of 44.1°F than October's 55.4°F.
Updated: Oct 17, 2026 @ 17:56:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Currently (1:56 pm EDT) it is 51.8°F in Port Jefferson. Feels-like temperature is 46.4°F.
On Saturday, expect blustery conditions under a sky filled with passing clouds.
Today, the maximum temperature will be 51.8°F, while the minimum temperature will be 41°F.
The maximum temperature will be notably lower than the average highest temperature of 62.6°F in October. Today, the lowest temperature will be also notably lower than the average low of 55.4°F.
The maximum temperature will be notably lower than the average highest temperature of 62.6°F in October. Today, the lowest temperature will be also notably lower than the average low of 55.4°F.
On Saturday, in Port Jefferson, sunrise was at 7:06 am and sunset will be at 6:09 pm (EDT).
In Port Jefferson, the length of the day today will be 11h and 3min.
Port Jefferson, New York, USA
- en: Port Jefferson, New York, USA
- es: Port Jefferson, Nueva York, EE.UU.
- hr: Port Džeferson, Nju Jork, SAD
- mk: Port Džeferson, Nju Jork, SAD
- sr: Port Džeferson, Nju Jork, SAD
- zh: 杰斐逊港, 纽约, 美国
- Latitude: 40.946488°
- Longitude: -73.069273°
- Elevation: 7 ft
- Current time: 1:56pm EDT
- Sunrise: 7:06 am EDT
- Sunset: 6:09 pm EDT
- Timezone: America/New_York
Nearby Port Jefferson, New York, USA
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