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Setauket, NY Marine Weather Forecast

Overnight - 19°F
Dec 05, 2025
13 mph N
Partly Cloudy
Partly cloudy. Low around 19, with temperatures rising to around 21 overnight. Wind chill values as low as 9. North wind around 13 mph.
Friday - 35°F
Dec 05, 2025
3 to 10 mph E
Mostly Sunny
Mostly sunny. High near 35, with temperatures falling to around 33 in the afternoon. Wind chill values as low as 9. East wind 3 to 10 mph.
Friday Night - 28°F
Dec 05, 2025
5 mph E
Chance Very Light Snow
A slight chance of snow between 10pm and 11pm, then a chance of snow and a chance of freezing rain. Mostly cloudy. Low around 28, with temperatures rising to around 32 overnight. East wind around 5 mph. Chance of precipitation is 30%.
Saturday - 42°F
Dec 06, 2025
5 to 10 mph NW
Chance Very Light Snow then Mostly Cloudy
A chance of snow and a chance of freezing rain before 8am, then a slight chance of rain and snow between 8am and 10am. Mostly cloudy, with a high near 42. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night - 30°F
Dec 06, 2025
9 to 13 mph NW
Partly Cloudy
Partly cloudy, with a low around 30. Northwest wind 9 to 13 mph.
Sunday - 40°F
Dec 07, 2025
5 to 8 mph NE
Partly Sunny
Partly sunny, with a high near 40.
Sunday Night - 25°F
Dec 07, 2025
6 to 21 mph W
Chance Rain And Snow Showers
A chance of rain and snow showers between 7pm and 4am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Monday - 33°F
Dec 08, 2025
18 to 23 mph NW
Mostly Sunny
Mostly sunny, with a high near 33.
Monday Night - 23°F
Dec 08, 2025
7 to 18 mph NW
Mostly Clear
Mostly clear, with a low around 23.
Tuesday - 39°F
Dec 09, 2025
6 to 16 mph W
Partly Sunny then Slight Chance Light Snow
A slight chance of snow after 1pm. Partly sunny, with a high near 39.
Tuesday Night - 35°F
Dec 09, 2025
15 to 18 mph SW
Slight Chance Light Snow
A slight chance of snow before 7pm, then a slight chance of rain and snow between 7pm and 1am. Mostly cloudy, with a low around 35.
Wednesday - 48°F
Dec 10, 2025
16 mph SW
Mostly Cloudy then Chance Light Rain
A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night - 41°F
Dec 10, 2025
17 mph SW
Light Rain Likely
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday - 45°F
Dec 11, 2025
16 to 20 mph W
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 45.

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