For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 7:47 am EDT Jul 12, 2026
Forecast Valid: 1pm EDT Jul 12, 2026-6pm EDT Jul 18, 2026

This Afternoon

SE wind around 8 kt. Sunny. Seas around 2 ft.

Tonight

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

Monday

Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Sunny. Seas around 2 ft.

Monday Night

SSW wind 12 to 14 kt becoming WSW after midnight. Mostly clear. Seas around 3 ft.

Tuesday

WSW wind 11 to 16 kt becoming SSW in the afternoon. Sunny. Seas 2 to 3 ft.

Tuesday Night

WSW wind 18 to 20 kt. Mostly clear. Seas around 4 ft.

Wednesday

SW wind around 15 kt. Sunny. Seas around 3 ft.

Wednesday Night

NW wind 11 to 14 kt decreasing to 8 to 11 kt after midnight. Partly cloudy. Seas around 3 ft.

Thursday

WNW wind 6 to 11 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.

*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.