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Port Jefferson Station, NY Marine Weather Forecast

Overnight - 65°F
Oct 02, 2026
7 mph SW
Partly Cloudy
Partly cloudy, with a low around 65. Southwest wind around 7 mph.
Friday - 80°F
Oct 02, 2026
7 to 14 mph SW
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 5pm. Mostly sunny. High near 80, with temperatures falling to around 76 in the afternoon. Southwest wind 7 to 14 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Friday Night - 59°F
Oct 02, 2026
8 to 12 mph NW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5am. Mostly cloudy, with a low around 59. Northwest wind 8 to 12 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday - 68°F
Oct 03, 2026
7 to 13 mph NE
Mostly Sunny
Mostly sunny. High near 68, with temperatures falling to around 66 in the afternoon. Northeast wind 7 to 13 mph.
Saturday Night - 55°F
Oct 03, 2026
6 to 10 mph E
Mostly Clear
Mostly clear, with a low around 55. East wind 6 to 10 mph.
Sunday - 64°F
Oct 04, 2026
10 to 14 mph E
Partly Sunny then Chance Rain Showers
A chance of rain showers after 2pm. Partly sunny. High near 64, with temperatures falling to around 62 in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday Night - 55°F
Oct 04, 2026
3 to 10 mph NE
Chance Rain Showers
A chance of rain showers. Cloudy, with a low around 55. Chance of precipitation is 40%.
Monday - 68°F
Oct 05, 2026
6 to 15 mph NW
Slight Chance Rain Showers then Partly Sunny
A slight chance of rain showers before 8am. Partly sunny, with a high near 68.
Monday Night - 47°F
Oct 05, 2026
16 mph NW
Mostly Clear
Mostly clear, with a low around 47.
Tuesday - 58°F
Oct 06, 2026
10 to 16 mph NW
Sunny
Sunny, with a high near 58.
Tuesday Night - 46°F
Oct 06, 2026
5 to 9 mph NW
Mostly Clear
Mostly clear, with a low around 46.
Wednesday - 60°F
Oct 07, 2026
5 to 9 mph W
Sunny
Sunny, with a high near 60.
Wednesday Night - 51°F
Oct 07, 2026
6 to 9 mph SW
Mostly Clear
Mostly clear, with a low around 51.
Thursday - 65°F
Oct 08, 2026
7 to 12 mph SW
Sunny
Sunny, with a high near 65.

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