For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 5:01 am EDT Jul 11, 2026
Forecast Valid: 10am EDT Jul 11, 2026-6pm EDT Jul 17, 2026

Today

ENE wind 10 to 12 kt. A chance of showers, with thunderstorms also possible after 11am. Seas around 2 ft.

Tonight

E wind 7 to 9 kt becoming NE after midnight. Mostly cloudy, then gradually becoming mostly clear. Seas around 2 ft.

Sunday

NE wind 6 to 9 kt becoming SSE in the afternoon. Sunny. Seas around 2 ft.

Sunday Night

S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.

Monday

Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas around 2 ft.

Monday Night

SSW wind 13 to 17 kt becoming WSW after midnight. Mostly clear. Seas 3 to 4 ft.

Tuesday

SW wind 12 to 16 kt. Sunny. Seas 2 to 3 ft.

Tuesday Night

WSW wind 17 to 19 kt. Mostly clear. Seas around 4 ft.

Wednesday

W wind 13 to 15 kt. Sunny. 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.