Weather forecast for 10 daysPort Jefferson Station, NY
Weather forecast for the weekend
Sunday Oct 18, 2026
- 55°F
- 45°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphNE 40°
- Humidity: 42%
- UV index: 4
- Sunrise: 7:07 am EDT
- Sunset: 6:07 pm EDT
- details ▼
On Sunday, October 18, sunshine is expected with little to no cloud cover.
Temperature span will be from a high of a mild 55.4°F to a low of a frosty 44.6°F.
The maximum temperature will be lower and more in tune with November's average of 51.8°F than with October's.
Sunrise was at 7:07 am and sunset will be at 6:07 pm; the daylight will last for 11h and 1min.
Temperature span will be from a high of a mild 55.4°F to a low of a frosty 44.6°F.
The maximum temperature will be lower and more in tune with November's average of 51.8°F than with October's.
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
Maximum temperature: 66°C.
Coldest day: today 55°C.
Coldest day: today 55°C.
Chance of precipitation
Highest chance: Wednesday 22%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 55°F
- 45°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphNE 40°
- Humidity: 42%
- UV index: 4
- Sunrise: 7:07 am EDT
- Sunset: 6:07 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 50°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 17mphNE 38°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:08 am EDT
- Sunset: 6:05 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 48°F
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
- details ▼
- Wednesday
- Oct 21, 2026
- 59°F
- 46°F
Mostly Sunny
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 19mphNNE 33°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:10 am EDT
- Sunset: 6:03 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 45°F
Mostly Sunny
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 14mphN 9°
- Humidity: 58%
- UV index: 4
- Sunrise: 7:11 am EDT
- Sunset: 6:01 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 57°F
- 41°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 15mphNNE 13°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:12 am EDT
- Sunset: 6:00 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 43°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 12mphNE 35°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:13 am EDT
- Sunset: 5:58 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 45°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 8mphNW 325°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:15 am EDT
- Sunset: 5:57 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 48°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphNW 312°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:16 am EDT
- Sunset: 5:56 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 61°F
- 45°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 11mphN 3°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:17 am EDT
- Sunset: 5:54 pm EDT
- details ▼
Ten-day trends indicate that primarily bright and occasionally overcast weather is expected.
Rain is not predicted in Port Jefferson Station in the upcoming period.
In the coming days, the maximum temperature will range between 55.4°F and 66.2°F, while the low temperature range extends from 41°F to 50°F.
With a maximum temperature of 66.2°F, Tuesday and next Monday will be the warmest days; today is the coldest day, with a maximum temperature of 55.4°F.
Rain is not predicted in Port Jefferson Station in the upcoming period.
In the coming days, the maximum temperature will range between 55.4°F and 66.2°F, while the low temperature range extends from 41°F to 50°F.
With a maximum temperature of 66.2°F, Tuesday and next Monday will be the warmest days; today is the coldest day, with a maximum temperature of 55.4°F.
Updated: Oct 18, 2026 @ 15:26:26 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
Today, expect consistent sunshine and open skies.
Today, the maximum temperature will be 55.4°F, while the minimum temperature will be 44.6°F.
Today, the maximum temperature will be relatively lower than the average highest temperature in October. The lowest temperature today will be significantly lower than the average low of 55.4°F.
Today, the maximum temperature will be relatively lower than the average highest temperature in October. The lowest temperature today 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, the length of the day today will be 11h and 1min.
