For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 10:36 am EDT Jun 18, 2026
Forecast Valid: 10am EDT Jun 18, 2026-6pm EDT Jun 24, 2026

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

Today

SSW wind 16 to 21 kt, with gusts as high as 31 kt. A chance of showers, with thunderstorms also possible after noon. Seas 1 ft or less.

Tonight

W wind 12 to 17 kt, with gusts as high as 35 kt. Increasing clouds. Seas around 1 ft.

Juneteenth

W wind 9 to 11 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

Friday Night

WNW wind 10 to 13 kt. Clear. Seas 1 ft or less.

Saturday

WNW wind around 15 kt. Sunny. Seas around 1 ft.

Saturday Night

WNW wind 7 to 12 kt. Mostly clear. Seas 1 ft or less.

Sunday

W wind around 7 kt. Sunny. Seas 1 ft or less.

Sunday Night

SW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Seas 1 ft or less.

Monday

SSE wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Showers, with thunderstorms also possible after 2pm. Seas 1 ft or less.

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.