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Southold, NY Marine Weather Forecast

Today - 43°F
Dec 20, 2025
6 to 9 mph W
Mostly Sunny
Mostly sunny. High near 43, with temperatures falling to around 36 in the afternoon. West wind 6 to 9 mph.
Tonight - 34°F
Dec 20, 2025
6 to 10 mph SW
Partly Cloudy
Partly cloudy. Low around 34, with temperatures rising to around 39 overnight. Southwest wind 6 to 10 mph.
Sunday - 45°F
Dec 21, 2025
9 to 16 mph W
Mostly Sunny
Mostly sunny. High near 45, with temperatures falling to around 38 in the afternoon. West wind 9 to 16 mph.
Sunday Night - 25°F
Dec 21, 2025
14 mph NW
Partly Cloudy
Partly cloudy, with a low around 25. Wind chill values as low as 15. Northwest wind around 14 mph, with gusts as high as 26 mph.
Monday - 38°F
Dec 22, 2025
8 to 12 mph NW
Sunny
Sunny, with a high near 38. Northwest wind 8 to 12 mph, with gusts as high as 23 mph.
Monday Night - 30°F
Dec 22, 2025
7 mph W
Mostly Cloudy then Chance Light Snow
A chance of snow between 1am and 4am, then a chance of rain and snow. Mostly cloudy. Low around 30, with temperatures rising to around 33 overnight. Chance of precipitation is 30%.
Tuesday - 45°F
Dec 23, 2025
6 to 13 mph SW
Chance Rain And Snow then Rain And Snow Likely
A chance of rain and snow before 7am, then rain and snow likely. Cloudy, with a high near 45. Chance of precipitation is 70%.
Tuesday Night - 33°F
Dec 23, 2025
10 mph W
Chance Light Rain then Mostly Cloudy
A chance of rain before 7pm. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Wednesday - 42°F
Dec 24, 2025
7 to 12 mph NW
Sunny
Sunny, with a high near 42.
Wednesday Night - 31°F
Dec 24, 2025
2 to 6 mph W
Mostly Cloudy
Mostly cloudy, with a low around 31.
Christmas Day - 48°F
Dec 25, 2025
5 to 10 mph SW
Chance Light Rain
A chance of rain after 7am. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.
Thursday Night - 38°F
Dec 25, 2025
7 mph SW
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Friday - 49°F
Dec 26, 2025
8 to 12 mph W
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Friday Night - 34°F
Dec 26, 2025
8 mph NW
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a low around 34.

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