Today's Weather in Port Jefferson

Thu 16th, Oct

12°C 53°F
Feels like: 9°C 48°F
Clear sky night
29km/h 18mph /
Gust: 27 km/h
Gust: 27 mph

  • Rain: 0.2 mm
  • Sun: 0 mins
  • Cloud: %
  • RH: 55.5%
  • Pressure: 0 mb
  • Visibility: 24135 m
Sunrise: 07:05
Sunset: 18:10

Port Jefferson 24hr weather forecast

03:00 06:00 09:00 12:00 15:00 18:00 21:00 00:00
Clear sky night
12°C
18 mph
Clear sky night
10°C
18 mph
Partly cloudy night
9°C
20 mph
White cloud
9°C
20 mph
Sunny intervals
10°C
20 mph
Sunny intervals
13°C
23 mph
Sunny
13°C
23 mph
Clear sky night
12°C
25 mph
15 day Port Jefferson forecast »

the weather forecast for tomorrow

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What's the weather supposed to be like today?!

Port Jefferson average weather Thursday 16th October 2025 12:33 AM
Max temp: 15.2°C 59.4°F
Min temp: 6.2°C 43.2°F
Rainfall: 3mm 0.1ins

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