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15NM SW Islip NY

[NOTICE]

Last Update: 2:41 pm EDT Jun 24, 2026
Forecast Valid: 1am EDT Jun 25, 2026-6pm EDT Jul 1, 2026

Thursday

Variable winds less than 5 kt becoming S 8 to 13 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Thursday Night

SSW wind 13 to 17 kt. A chance of showers and thunderstorms after 2am. Seas around 3 ft.

Friday

SSW wind around 9 kt. A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm. Seas 2 to 3 ft.

Friday Night

SSW wind 5 to 9 kt. A chance of showers and thunderstorms, then showers likely after 11pm. Seas around 2 ft.

Saturday

Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Showers likely, mainly before 2pm. Seas around 2 ft.

Saturday Night

ESE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers before 8pm. Seas around 2 ft.

Sunday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. Mostly sunny. Seas around 2 ft.

Sunday Night

S wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 2 ft.

Monday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Mostly sunny. Seas around 2 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.