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South Jamesport, NY Marine Weather Forecast

This Afternoon - 91°F
Jul 03, 2026
12 mph SW
Sunny
Sunny. High near 91, with temperatures falling to around 88 in the afternoon. Heat index values as high as 100. Southwest wind around 12 mph.
Tonight - 74°F
Jul 03, 2026
5 to 12 mph W
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 74. West wind 5 to 12 mph. Chance of precipitation is 20%.
Independence Day - 90°F
Jul 04, 2026
6 to 10 mph W
Sunny then Chance Showers And Thunderstorms
A chance of rain showers between 4pm and 5pm, then a chance of showers and thunderstorms. Sunny. High near 90, with temperatures falling to around 87 in the afternoon. Heat index values as high as 97. West wind 6 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday Night - 71°F
Jul 04, 2026
5 to 8 mph NW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Northwest wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunday - 83°F
Jul 05, 2026
8 mph E
Chance Rain Showers
A chance of rain showers. Partly sunny. High near 83, with temperatures falling to around 79 in the afternoon. East wind around 8 mph. Chance of precipitation is 30%.
Sunday Night - 67°F
Jul 05, 2026
7 mph SE
Chance Rain Showers
A chance of rain showers before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Monday - 79°F
Jul 06, 2026
8 to 15 mph E
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Monday Night - 66°F
Jul 06, 2026
12 to 15 mph E
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Tuesday - 74°F
Jul 07, 2026
13 to 16 mph E
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 70%.
Tuesday Night - 66°F
Jul 07, 2026
8 to 13 mph NE
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Wednesday - 76°F
Jul 08, 2026
9 mph SE
Chance Rain Showers then Partly Sunny
A chance of rain showers before 8am. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Wednesday Night - 68°F
Jul 08, 2026
3 to 7 mph SW
Partly Cloudy
Partly cloudy, with a low around 68.
Thursday - 78°F
Jul 09, 2026
3 to 10 mph SW
Mostly Sunny
Mostly sunny, with a high near 78.
Thursday Night - 69°F
Jul 09, 2026
6 to 10 mph SW
Partly Cloudy
Partly cloudy, with a low around 69.

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