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Mattituck, NY Marine Weather Forecast

Tonight - 74°F
Jul 02, 2026
2 to 9 mph W
Mostly Clear
Mostly clear, with a low around 74. West wind 2 to 9 mph.
Friday - 97°F
Jul 03, 2026
2 to 9 mph W
Sunny
Sunny. High near 97, with temperatures falling to around 95 in the afternoon. Heat index values as high as 109. West wind 2 to 9 mph.
Friday Night - 75°F
Jul 03, 2026
3 to 8 mph W
Mostly Clear
Mostly clear, with a low around 75. Heat index values as high as 101. West wind 3 to 8 mph.
Independence Day - 93°F
Jul 04, 2026
3 to 10 mph W
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 103. West wind 3 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 72°F
Jul 04, 2026
3 to 7 mph NW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 72. Northwest wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunday - 85°F
Jul 05, 2026
7 mph E
Mostly Sunny
Mostly sunny, with a high near 85.
Sunday Night - 68°F
Jul 05, 2026
2 to 6 mph SE
Chance Rain Showers
A chance of rain showers after 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Monday - 79°F
Jul 06, 2026
2 to 10 mph E
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Monday Night - 67°F
Jul 06, 2026
6 to 9 mph E
Showers And Thunderstorms Likely
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday - 80°F
Jul 07, 2026
8 to 13 mph E
Rain Showers Likely
Rain showers likely before 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Tuesday Night - 66°F
Jul 07, 2026
3 to 8 mph E
Partly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 2am. Partly cloudy, with a low around 66.
Wednesday - 81°F
Jul 08, 2026
5 to 8 mph E
Slight Chance Rain Showers then Mostly Sunny
A slight chance of rain showers before 8am. Mostly sunny, with a high near 81.
Wednesday Night - 68°F
Jul 08, 2026
2 to 6 mph SW
Partly Cloudy
Partly cloudy, with a low around 68.
Thursday - 85°F
Jul 09, 2026
2 to 8 mph SW
Mostly Sunny
Mostly sunny, with a high near 85.

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