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15NM SW Islip NY

[NOTICE]

Last Update: 5:30 pm EDT Jul 4, 2026
Forecast Valid: 12am EDT Jul 5, 2026-6pm EDT Jul 11, 2026

Overnight

W wind around 7 kt. Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Seas around 2 ft.

Sunday

Variable winds less than 5 kt becoming ESE 5 to 8 kt in the morning. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Sunday Night

E wind around 11 kt. A chance of showers and thunderstorms, then rain and possibly a thunderstorm after 8pm. Seas around 2 ft.

Monday

E wind 16 to 18 kt. Rain and possibly a thunderstorm. Seas 4 to 5 ft.

Monday Night

E wind 15 to 18 kt. Rain and possibly a thunderstorm. Seas 6 ft subsiding to 4 ft.

Tuesday

NE wind around 17 kt. Showers likely and possibly a thunderstorm. Seas around 4 ft.

Tuesday Night

NE wind 13 to 16 kt. A chance of showers before 2am. Seas around 4 ft.

Wednesday

N wind 8 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas 3 to 4 ft.

Wednesday Night

SSW wind around 8 kt becoming WSW after midnight. Mostly clear. Seas around 3 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.