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Plum Gut Harbor, NY - Plum Island Marine Weather Forecast

This Afternoon - 49°F
Dec 29, 2025
20 to 24 mph SW
Light Rain
Rain. Cloudy. High near 49, with temperatures falling to around 42 in the afternoon. Southwest wind 20 to 24 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight - 28°F
Dec 29, 2025
29 to 33 mph W
Chance Light Rain then Partly Cloudy
A chance of rain before 7pm. Partly cloudy, with a low around 28. Wind chill values as low as 13. West wind 29 to 33 mph, with gusts as high as 44 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Tuesday - 31°F
Dec 30, 2025
30 to 33 mph W
Partly Sunny
Partly sunny, with a high near 31. Wind chill values as low as 12. West wind 30 to 33 mph, with gusts as high as 45 mph.
Tuesday Night - 28°F
Dec 30, 2025
23 to 32 mph W
Partly Cloudy
Partly cloudy. Low around 28, with temperatures rising to around 30 overnight. Wind chill values as low as 13. West wind 23 to 32 mph.
Wednesday - 34°F
Dec 31, 2025
21 mph W
Mostly Cloudy
Mostly cloudy, with a high near 34. West wind around 21 mph.
Wednesday Night - 25°F
Dec 31, 2025
21 mph W
Chance Light Snow
A chance of snow after 7pm. Mostly cloudy. Low around 25, with temperatures rising to around 29 overnight. Chance of precipitation is 30%.
New Year's Day - 30°F
Jan 01, 2026
17 mph NW
Chance Light Snow
A chance of snow before 1pm. Mostly sunny, with a high near 30. Chance of precipitation is 30%.
Thursday Night - 22°F
Jan 01, 2026
13 to 16 mph NW
Partly Cloudy
Partly cloudy, with a low around 22.
Friday - 31°F
Jan 02, 2026
13 to 16 mph W
Mostly Sunny
Mostly sunny, with a high near 31.
Friday Night - 26°F
Jan 02, 2026
13 mph W
Partly Cloudy
Partly cloudy, with a low around 26.
Saturday - 34°F
Jan 03, 2026
10 mph NW
Mostly Sunny
Mostly sunny, with a high near 34.
Saturday Night - 23°F
Jan 03, 2026
10 mph NW
Slight Chance Light Snow
A slight chance of snow after 7pm. Partly cloudy, with a low around 23.
Sunday - 33°F
Jan 04, 2026
12 mph NW
Slight Chance Light Snow then Mostly Sunny
A slight chance of snow before 7am. Mostly sunny, with a high near 33.
Sunday Night - 25°F
Jan 04, 2026
13 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 25.

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