Weather forecast for tomorrowPort Jefferson, OH

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 68°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphE 97°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:51 am EDT
  • Sunset: 6:50 pm EDT
  • ▼
Tomorrow, on Monday, October 19, clear and sunny conditions are also expected.
Day and night temperatures will contrast sharply, ranging from a peak of an agreeable 68°F to a low of a wintry 39.2°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise will be at 7:51 am and sunset at 6:50 pm; tomorrow's daylight will last for 10h and 59min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSE 157°
  • Humidity: 72%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphSSE 163°
  • Humidity: 76%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSE 162°
  • Humidity: 82%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphSSE 164°
  • Humidity: 84%
  • Pressure: 30.45"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:51 am
  • 8 am
  • 37°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphSSE 159°
  • Humidity: 86%
  • Pressure: 30.45"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphSSE 147°
  • Humidity: 66%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphE 80°
  • Humidity: 45%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNE 54°
  • Humidity: 36%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphENE 59°
  • Humidity: 34%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 28°
  • Humidity: 38%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:50 pm
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNNE 28°
  • Humidity: 59%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 35°
  • Humidity: 68%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, clear skies and sunny weather are expected.
The temperature will be between a minimum of 37.4°F and a maximum of 66.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The day’s peak temperature will reflect September's norm of 73.6°F more than October's 61.7°F. The lowest temperature is more consistent with November's average minimum of 34.9°F than the usual minimum of 46°F in October.
Updated: Oct 18, 2026 @ 04:44:13 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunny and dry conditions are anticipated.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 39.2°F.
The highest temperature will be a few degrees higher than the average maximum of 61.7°F in October. The lowest temperature will be also a few degrees lower than the average low of 46°F.

On Monday, in Port Jefferson, sunrise will be at 7:51 am and sunset at 6:50 pm (EDT).

In Port Jefferson, tomorrow, there will be 10h and 59min of daylight.