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15NM SW Islip NY

[NOTICE]

Last Update: 2:24 pm EDT Apr 17, 2026
Forecast Valid: 3pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026

This Afternoon

WSW wind around 7 kt. Scattered showers and thunderstorms. Seas around 3 ft.

Tonight

E wind 6 to 11 kt. Scattered showers before 8pm. Seas 2 to 3 ft.

Saturday

NE wind 7 to 11 kt becoming E in the afternoon. Partly sunny. Seas around 2 ft.

Saturday Night

SE wind around 9 kt. A chance of showers after 2am. Seas around 2 ft.

Sunday

ESE wind 8 to 11 kt becoming NW 13 to 16 kt in the morning. Winds could gust as high as 22 kt. Showers, mainly after 8am. Seas 2 to 3 ft.

Sunday Night

NW wind 9 to 12 kt. Cloudy during the early evening, then gradual clearing. Seas 2 to 3 ft.

Monday

WNW wind around 12 kt. Mostly sunny. Seas around 3 ft.

Monday Night

NNW wind around 15 kt. Partly cloudy. Seas 2 to 3 ft.

Tuesday

N wind 7 to 11 kt becoming S in the afternoon. Sunny. Seas 1 to 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.