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Riverhead, NY Marine Weather Forecast

Today - 81°F
Jul 02, 2026
10 to 14 mph SW
Sunny
Sunny. High near 81, with temperatures falling to around 79 in the afternoon. Southwest wind 10 to 14 mph.
Tonight - 71°F
Jul 02, 2026
3 to 14 mph SW
Clear
Clear, with a low around 71. Southwest wind 3 to 14 mph.
Friday - 87°F
Jul 03, 2026
2 to 12 mph W
Sunny then Isolated Showers And Thunderstorms
Isolated showers and thunderstorms after 2pm. Sunny. High near 87, with temperatures falling to around 84 in the afternoon. West wind 2 to 12 mph. Chance of precipitation is 20%.
Friday Night - 73°F
Jul 03, 2026
5 to 12 mph W
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms. Partly cloudy, with a low around 73. West wind 5 to 12 mph. Chance of precipitation is 20%.
Independence Day - 85°F
Jul 04, 2026
5 to 12 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Sunny. High near 85, with temperatures falling to around 81 in the afternoon. West wind 5 to 12 mph. Chance of precipitation is 30%.
Saturday Night - 71°F
Jul 04, 2026
5 to 10 mph NW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Sunday - 80°F
Jul 05, 2026
5 to 9 mph NE
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Sunday Night - 68°F
Jul 05, 2026
7 mph SE
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A slight chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Monday - 74°F
Jul 06, 2026
7 to 13 mph E
Showers And Thunderstorms Likely
Rain showers likely before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Monday Night - 66°F
Jul 06, 2026
12 mph E
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Tuesday - 74°F
Jul 07, 2026
12 mph NE
Chance Rain Showers then Partly Sunny
A chance of rain showers before 8am. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Tuesday Night - 66°F
Jul 07, 2026
5 to 10 mph NE
Partly Cloudy
Partly cloudy, with a low around 66.
Wednesday - 72°F
Jul 08, 2026
5 to 9 mph E
Mostly Sunny
Mostly sunny, with a high near 72.
Wednesday Night - 68°F
Jul 08, 2026
5 to 8 mph S
Partly Cloudy
Partly cloudy, with a low around 68.

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