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Riverhead, NY Marine Weather Forecast

Overnight - 15°F
Dec 05, 2025
7 mph N
Partly Cloudy
Partly cloudy. Low around 15, with temperatures rising to around 19 overnight. Wind chill values as low as 9. North wind around 7 mph.
Friday - 39°F
Dec 05, 2025
1 to 6 mph E
Mostly Sunny
Mostly sunny. High near 39, with temperatures falling to around 32 in the afternoon. Wind chill values as low as 9. East wind 1 to 6 mph.
Friday Night - 28°F
Dec 05, 2025
2 mph E
Mostly Cloudy then Slight Chance Very Light Snow
A slight chance of snow and a slight chance of freezing rain after 1am. Mostly cloudy. Low around 28, with temperatures rising to around 32 overnight. East wind around 2 mph. Chance of precipitation is 20%.
Saturday - 45°F
Dec 06, 2025
2 to 7 mph W
Slight Chance Very Light Snow
A slight chance of snow and a slight chance of freezing rain before 7am, then a slight chance of rain and snow between 7am and 1pm. Mostly cloudy. High near 45, with temperatures falling to around 39 in the afternoon. West wind 2 to 7 mph. Chance of precipitation is 20%.
Saturday Night - 29°F
Dec 06, 2025
6 mph NW
Partly Cloudy
Partly cloudy, with a low around 29. Northwest wind around 6 mph.
Sunday - 42°F
Dec 07, 2025
6 mph NE
Partly Sunny
Partly sunny. High near 42, with temperatures falling to around 36 in the afternoon.
Sunday Night - 23°F
Dec 07, 2025
2 to 9 mph W
Chance Snow Showers
A chance of snow showers between 7pm and 4am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Monday - 36°F
Dec 08, 2025
10 to 15 mph NW
Mostly Sunny
Mostly sunny, with a high near 36.
Monday Night - 18°F
Dec 08, 2025
3 to 10 mph NW
Mostly Clear
Mostly clear, with a low around 18.
Tuesday - 42°F
Dec 09, 2025
2 to 10 mph W
Partly Sunny then Slight Chance Rain And Snow
A slight chance of rain and snow after 1pm. Partly sunny, with a high near 42.
Tuesday Night - 30°F
Dec 09, 2025
6 to 9 mph SW
Slight Chance Rain And Snow
A slight chance of rain and snow before 1am. Mostly cloudy, with a low around 30.
Wednesday - 51°F
Dec 10, 2025
7 to 12 mph SW
Mostly Cloudy then Chance Light Rain
A chance of rain after 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Wednesday Night - 36°F
Dec 10, 2025
9 mph SW
Light Rain Likely
Rain likely. Cloudy, with a low around 36. Chance of precipitation is 60%.
Thursday - 48°F
Dec 11, 2025
8 to 12 mph W
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 48.

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