Weather forecast for tomorrow
Port Jefferson, NY

Weather forecast for tomorrow

Wednesday, Jun 18.

AM Showers
5:18 am

8:28 pm
EDT
AM Showers
75°F / 70°F
  • Wind: 8mph S
  • Humidity: 87%
  • Precip. probability: 57%
  • Precipitation: 0.2"
  • UV index: 6
On Wednesday, June 18, wet conditions with brief showers are expected early in the day.
The likelihood of rainfall for tomorrow is high. However, precipitation will be light. Temperature readings will slightly shift from a daytime peak of a temperate 75.2°F to a nighttime low of a delightful 69.8°F.
The day’s highest temperature is expected to be a few degrees higher than the standard June average of 71.2°F.
Sunrise will be at 5:18 am and sunset at 8:28 pm; tomorrow's daylight will last for 15h and 10min.

Frequently asked questions

What is the weather forecast for Port Jefferson for tomorrow?
On Wednesday, light morning rain showers are possible throughout the early hours.
Will it rain tomorrow?
Light precipitation of 0.2" is forecasted. The likelihood of rainfall is 57%.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 75.2°F, while the lowest temperature will be 69.8°F.
The maximum temperature will be slightly warmer than the average highest temperature of 71.2°F in June. The lowest temperature will be also a few degrees higher than the average low of 63.1°F.
When is the sunrise / sunset tomorrow?
On Wednesday, in Port Jefferson, sunrise will be at 5:18 am and sunset at 8:28 pm (EDT).
How many hours of daylight will Port Jefferson have tomorrow?
In Port Jefferson, the length of the day tomorrow will be 15h and 10min.

Hourly weather forecast

12 am
  • 66°F
  • Feels like:
    66°F
Foggy
Foggy
  • Wind: 5mph SSE
  • Pressure: 29.97"Hg
  • Humidity: 96%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 0mi
2 am
  • 66°F
  • Feels like:
    66°F
Foggy
Foggy
  • Wind: 4mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 96%
  • Precip. probability: 14%
  • Precipitation: 0"
  • Visibility: 0mi
4 am
  • 66°F
  • Feels like:
    68°F
Showers
Showers
  • Wind: 3mph S
  • Pressure: 29.94"Hg
  • Humidity: 95%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 0mi
Sunrise: 5:18 am
6 am
  • 66°F
  • Feels like:
    68°F
Rain
Rain
  • Wind: 5mph S
  • Pressure: 29.94"Hg
  • Humidity: 97%
  • Precip. probability: 67%
  • Precipitation: 0.08"
  • Visibility: 1mi
8 am
  • 68°F
  • Feels like:
    70°F
Showers
Showers
  • Wind: 6mph S
  • Pressure: 29.94"Hg
  • Humidity: 93%
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Visibility: 0mi
10 am
  • 72°F
  • Feels like:
    73°F
Cloudy
Cloudy
  • Wind: 7mph S
  • Pressure: 29.94"Hg
  • Humidity: 87%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 1mi
12 pm
  • 72°F
  • Feels like:
    73°F
Cloudy
Cloudy
  • Wind: 8mph S
  • Pressure: 29.91"Hg
  • Humidity: 87%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 2mi
2 pm
  • 73°F
  • Feels like:
    75°F
Cloudy
Cloudy
  • Wind: 7mph S
  • Pressure: 29.88"Hg
  • Humidity: 85%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 8mi
4 pm
  • 75°F
  • Feels like:
    77°F
Cloudy
Cloudy
  • Wind: 5mph S
  • Pressure: 29.85"Hg
  • Humidity: 84%
  • Precip. probability: 22%
  • Precipitation: 0"
  • Visibility: 4mi
6 pm
  • 73°F
  • Feels like:
    77°F
Few Showers
Few Showers
  • Wind: 6mph S
  • Pressure: 29.85"Hg
  • Humidity: 86%
  • Precip. probability: 34%
  • Precipitation: 0.04"
  • Visibility: 2mi
8 pm
  • 72°F
  • Feels like:
    75°F
Showers
Showers
  • Wind: 6mph S
  • Pressure: 29.85"Hg
  • Humidity: 89%
  • Precip. probability: 39%
  • Precipitation: 0.08"
  • Visibility: 0mi
Sunset: 8:28 pm
10 pm
  • 72°F
  • Feels like:
    73°F
Foggy
Foggy
  • Wind: 4mph S
  • Pressure: 29.85"Hg
  • Humidity: 94%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 0mi
Tomorrow, on Wednesday, a combination of gloomy, hazy and rain-filled weather is anticipated.
Rainfall is predicted from 4 am to 8 am, and from 6 pm to 9 pm. The most intense rain will be falling at 5 am, 6 am, 7 pm and 8 pm.
The temperature will vary between the lowest temperature of 66.2°F and the highest temperature of 75.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The highest temperature will be moderately higher than June's average maximum of 71.2°F. Forecast models suggest a low more in line with July's typical minimum of 71.1°F than June's usual 63.1°F.
Updated: Jun 18, 2025 @ 00:02:18 UTC
Published by: Weather U.S. | About Us
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