For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 2:28 pm EDT Aug 15, 2026
Forecast Valid: 5pm EDT Aug 15, 2026-6pm EDT Aug 22, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH

Tonight

SSE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming S 9 to 14 kt in the morning. A chance of showers, mainly after 5pm. Seas 1 ft or less.

Sunday Night

S wind 17 to 20 kt. Showers, mainly after 11pm. Seas 1 ft or less.

Monday

S wind 11 to 14 kt becoming W 8 to 11 kt in the afternoon. Showers, mainly before 8am. Seas 1 ft or less.

Monday Night

NNW wind around 6 kt. A slight chance of showers before 8pm. Seas 1 ft or less.

Tuesday

N wind 5 to 7 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

S wind 8 to 11 kt becoming WSW after midnight. Partly cloudy. Seas 1 ft or less.

*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.