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15NM SW Islip NY

[NOTICE]

Last Update: 5:23 am EDT Apr 15, 2026
Forecast Valid: 1pm EDT Apr 15, 2026-6pm EDT Apr 21, 2026

This Afternoon

SSW wind 11 to 13 kt. Mostly sunny. Seas around 3 ft.

Tonight

SSW wind 11 to 14 kt becoming SSW 8 to 11 kt after midnight. A chance of showers and thunderstorms, mainly between 11pm and 2am. Seas around 3 ft.

Thursday

SW wind 8 to 13 kt becoming S in the afternoon. Partly sunny. Seas around 3 ft.

Thursday Night

SW wind 13 to 16 kt decreasing to 10 to 13 kt after midnight. Mostly cloudy. Seas 3 to 4 ft.

Friday

WSW wind 8 to 10 kt. A chance of showers, mainly after 2pm. Seas around 3 ft.

Friday Night

WNW wind around 8 kt becoming NE after midnight. A chance of showers before 8pm. Seas 2 to 3 ft.

Saturday

ENE wind around 9 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.

Saturday Night

SE wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Sunday

S wind 13 to 17 kt becoming WSW in the afternoon. Showers likely. Seas 2 to 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.