For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 2:30 pm EDT Jun 22, 2026
Forecast Valid: 5pm EDT Jun 22, 2026-6pm EDT Jun 29, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Late Afternoon

SE wind around 15 kt, with gusts as high as 21 kt. Showers likely and possibly a thunderstorm. Seas around 2 ft.

Tonight

S wind 15 to 20 kt becoming SSW 10 to 15 kt. Showers and possibly a thunderstorm. Seas 3 ft building to 5 ft.

Tuesday

SSW wind 6 to 8 kt becoming NW in the afternoon. A chance of showers and thunderstorms, then showers likely after 11am. Seas around 3 ft.

Tuesday Night

NNW wind 7 to 10 kt. A chance of showers before 11pm. Seas 2 to 3 ft.

Wednesday

NNW wind 6 to 9 kt becoming WSW in the afternoon. Sunny. Seas 2 to 3 ft.

Wednesday Night

SSW wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 2 to 3 ft.

Thursday

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

Thursday Night

S wind 12 to 15 kt. A chance of showers, with thunderstorms also possible after 2am. Seas around 3 ft.

Friday

S wind 10 to 13 kt. A chance of showers and thunderstorms. 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.