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East Setauket, NY Marine Weather Forecast

Today - 31°F
Dec 26, 2025
6 to 14 mph NE
Mostly Cloudy then Chance Light Snow
A chance of snow after 4pm. Mostly cloudy. High near 31, with temperatures falling to around 28 in the afternoon. Wind chill values as low as 11. Northeast wind 6 to 14 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Tonight - 26°F
Dec 26, 2025
6 to 20 mph E
Heavy Snow
Snow. Cloudy. Low around 26, with temperatures rising to around 31 overnight. Wind chill values as low as 18. East wind 6 to 20 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Saturday - 32°F
Dec 27, 2025
9 to 20 mph NE
Light Snow
Snow before 1pm. Partly sunny, with a high near 32. Wind chill values as low as 17. Northeast wind 9 to 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night - 26°F
Dec 27, 2025
6 to 9 mph N
Partly Cloudy
Partly cloudy, with a low around 26. Wind chill values as low as 19. North wind 6 to 9 mph.
Sunday - 40°F
Dec 28, 2025
8 mph W
Mostly Cloudy then Chance Light Rain
A chance of rain after 1pm. Mostly cloudy. High near 40, with temperatures falling to around 34 in the afternoon. West wind around 8 mph. Chance of precipitation is 30%.
Sunday Night - 34°F
Dec 28, 2025
8 to 12 mph SW
Light Rain
Rain. Cloudy. Low around 34, with temperatures rising to around 42 overnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday - 47°F
Dec 29, 2025
12 to 22 mph SW
Light Rain
Rain. Cloudy, with a high near 47. Chance of precipitation is 90%.
Monday Night - 29°F
Dec 29, 2025
23 to 32 mph W
Light Rain Likely then Mostly Cloudy
Rain likely before 7pm. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.
Tuesday - 32°F
Dec 30, 2025
26 to 31 mph W
Partly Sunny
Partly sunny, with a high near 32.
Tuesday Night - 28°F
Dec 30, 2025
23 to 28 mph W
Mostly Cloudy
Mostly cloudy, with a low around 28.
Wednesday - 35°F
Dec 31, 2025
22 mph W
Partly Sunny
Partly sunny, with a high near 35.
Wednesday Night - 25°F
Dec 31, 2025
16 to 22 mph W
Mostly Cloudy
Mostly cloudy, with a low around 25.
New Year's Day - 31°F
Jan 01, 2026
18 mph W
Partly Sunny
Partly sunny, with a high near 31.
Thursday Night - 23°F
Jan 01, 2026
20 mph W
Mostly Cloudy
Mostly cloudy, with a low around 23.

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