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Shelter Island Heights, NY Marine Weather Forecast

This Afternoon - 96°F
Jul 03, 2026
8 mph SW
Sunny
Sunny. High near 96, with temperatures falling to around 92 in the afternoon. Heat index values as high as 103. Southwest wind around 8 mph.
Tonight - 75°F
Jul 03, 2026
5 to 9 mph W
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms between 10pm and midnight. Partly cloudy, with a low around 75. Heat index values as high as 97. West wind 5 to 9 mph. Chance of precipitation is 20%.
Independence Day - 94°F
Jul 04, 2026
5 to 8 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 94, with temperatures falling to around 89 in the afternoon. Heat index values as high as 100. West wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday Night - 72°F
Jul 04, 2026
7 mph NW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Northwest wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Sunday - 84°F
Jul 05, 2026
6 mph E
Chance Rain Showers
A chance of rain showers. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. East wind around 6 mph. Chance of precipitation is 30%.
Sunday Night - 68°F
Jul 05, 2026
6 mph SE
Chance Rain Showers
A chance of rain showers before 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Monday - 80°F
Jul 06, 2026
6 to 13 mph E
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Monday Night - 67°F
Jul 06, 2026
12 mph E
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday - 80°F
Jul 07, 2026
10 to 14 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 80. Chance of precipitation is 60%.
Tuesday Night - 67°F
Jul 07, 2026
7 to 10 mph NE
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday - 82°F
Jul 08, 2026
7 mph E
Chance Rain Showers then Partly Sunny
A chance of rain showers before 8am. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Wednesday Night - 69°F
Jul 08, 2026
2 to 6 mph SW
Partly Cloudy
Partly cloudy, with a low around 69.
Thursday - 85°F
Jul 09, 2026
2 to 8 mph SW
Sunny
Sunny, with a high near 85.
Thursday Night - 70°F
Jul 09, 2026
3 to 8 mph SW
Partly Cloudy
Partly cloudy, with a low around 70.

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