Weather forecast for 10 daysPort Jefferson, OH
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphS 171°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:50 am EDT
- Sunset: 6:52 pm EDT
- details ▼
Tomorrow, sunny and dry conditions are also anticipated.
Temperatures will see a substantial oscillation, reaching a high of an enjoyable 64.4°F and dropping to a low of a wintry 35.6°F.
Forecasts show that tomorrow the temperature will align with October's standard maximum of 61.7°F.
Sunrise will be at 7:50 am and sunset at 6:52 pm; tomorrow's daylight will last for 11h and 2min.
Temperatures will see a substantial oscillation, reaching a high of an enjoyable 64.4°F and dropping to a low of a wintry 35.6°F.
Forecasts show that tomorrow the temperature will align with October's standard maximum of 61.7°F.
Sunrise will be at 7:50 am and sunset at 6:52 pm; tomorrow's daylight will last for 11h and 2min.
10-day overview
Daily temperatures
Warmest day: Sunday 25.10. 72°C.
Coldest day: tomorrow 64°C.
Coldest day: tomorrow 64°C.
Chance of precipitation
Highest chance: Wednesday 9%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 34°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSSE 162°
- Humidity: 88%
- UV index: 0
- Sunrise: 7:49 am EDT
- Sunset: 6:53 pm EDT
- details ▼
- Sunday
- Oct 18, 2026
- 64°F
- 36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphS 171°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:50 am EDT
- Sunset: 6:52 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 37°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphESE 102°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:51 am EDT
- Sunset: 6:50 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 39°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphNE 43°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:52 am EDT
- Sunset: 6:49 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 5mphNNE 33°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:53 am EDT
- Sunset: 6:47 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 68°F
- 41°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 5mphNNE 20°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:55 am EDT
- Sunset: 6:46 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 70°F
- 41°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphENE 66°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:56 am EDT
- Sunset: 6:45 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 43°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphESE 105°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:57 am EDT
- Sunset: 6:43 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 72°F
- 45°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphSSE 165°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:58 am EDT
- Sunset: 6:42 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 70°F
- 45°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphNW 319°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:59 am EDT
- Sunset: 6:41 pm EDT
- details ▼
Over the next ten days, primarily dry and sunny and occasionally dull weather is anticipated.
Rainfall is not expected in Port Jefferson in the upcoming days.
In the coming days, the highest temperature will vary between 64.4°F and 71.6°F, while the forecast minimum temperature falls between 33.8°F and 44.6°F.
The warmest day will be next Sunday, with a maximum of 71.6°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 64.4°F.
Rainfall is not expected in Port Jefferson in the upcoming days.
In the coming days, the highest temperature will vary between 64.4°F and 71.6°F, while the forecast minimum temperature falls between 33.8°F and 44.6°F.
The warmest day will be next Sunday, with a maximum of 71.6°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 64.4°F.
Updated: Oct 18, 2026 @ 01:43:32 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
On Sunday, in Port Jefferson, the weather remains calm, bright, and sunny.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 35.6°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be uncommonly lower than the average low of 46°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be uncommonly lower than the average low of 46°F.
On Sunday, in Port Jefferson, sunrise will be at 7:50 am and sunset at 6:52 pm (EDT).
In Port Jefferson, the length of the day tomorrow will be 11h and 2min.
