For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 2:58 am EDT Jul 2, 2026
Forecast Valid: 12pm EDT Jul 2, 2026-6pm EDT Jul 8, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

This Afternoon

SSW wind 11 to 15 kt. Sunny. Seas around 3 ft.

Tonight

SSW wind 14 to 17 kt becoming W 9 to 12 kt after midnight. Clear. Seas 3 to 4 ft.

Friday

W wind 6 to 9 kt becoming SW 10 to 13 kt in the afternoon. Isolated showers and thunderstorms after 2pm. Seas 2 to 3 ft.

Friday Night

WSW wind 6 to 9 kt becoming W after midnight. Isolated showers and thunderstorms before 2am. Seas 2 to 3 ft.

Independence Day

W wind 6 to 9 kt becoming SW 10 to 13 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Saturday Night

W wind 6 to 8 kt becoming NW after midnight. A chance of showers and thunderstorms before 2am. Seas around 2 ft.

Sunday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Sunday Night

ESE wind 6 to 8 kt. A chance of showers and thunderstorms, then showers likely after 8pm. Seas 2 to 3 ft.

Monday

E wind 10 to 12 kt. Showers likely, with thunderstorms also possible after 2pm. Seas 3 to 4 ft.

Winds and seas may be higher in and near tstms.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.