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Mount Sinai Harbor, NY Marine Weather Forecast

Today - 34°F
Dec 31, 2025
14 to 17 mph SW
Partly Sunny
Partly sunny. High near 34, with temperatures falling to around 32 in the afternoon. Wind chill values as low as 12. Southwest wind 14 to 17 mph.
Tonight - 27°F
Dec 31, 2025
13 to 18 mph SW
Very Light Snow
Snow between 7pm and 4am. Mostly cloudy. Low around 27, with temperatures rising to around 33 overnight. Wind chill values as low as 18. Southwest wind 13 to 18 mph. Chance of precipitation is 80%. New snow accumulation of less than half an inch possible.
New Year's Day - 32°F
Jan 01, 2026
20 to 25 mph W
Slight Chance Snow Showers then Mostly Sunny
A slight chance of snow showers between 7am and 10am. Mostly sunny. High near 32, with temperatures falling to around 25 in the afternoon. Wind chill values as low as 11. West wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 20%. New snow accumulation of less than half an inch possible.
Thursday Night - 21°F
Jan 01, 2026
14 to 20 mph W
Mostly Clear
Mostly clear. Low around 21, with temperatures rising to around 23 overnight. Wind chill values as low as 10. West wind 14 to 20 mph.
Friday - 31°F
Jan 02, 2026
14 to 17 mph W
Partly Sunny
Partly sunny, with a high near 31. West wind 14 to 17 mph.
Friday Night - 26°F
Jan 02, 2026
14 mph W
Mostly Clear
Mostly clear, with a low around 26.
Saturday - 31°F
Jan 03, 2026
10 to 14 mph W
Mostly Sunny
Mostly sunny, with a high near 31.
Saturday Night - 20°F
Jan 03, 2026
10 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 20.
Sunday - 32°F
Jan 04, 2026
10 mph NW
Mostly Sunny
Mostly sunny, with a high near 32.
Sunday Night - 25°F
Jan 04, 2026
10 mph NW
Partly Cloudy
Partly cloudy, with a low around 25.
Monday - 36°F
Jan 05, 2026
9 mph W
Partly Sunny then Slight Chance Light Snow
A slight chance of snow after 1pm. Partly sunny, with a high near 36.
Monday Night - 30°F
Jan 05, 2026
9 mph W
Chance Light Snow
A chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Tuesday - 38°F
Jan 06, 2026
12 mph W
Slight Chance Rain And Snow
A slight chance of rain and snow before 1pm. Partly sunny, with a high near 38.
Tuesday Night - 30°F
Jan 06, 2026
10 mph NW
Partly Cloudy
Partly cloudy, with a low around 30.

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