For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 6:34 pm EDT Apr 18, 2026
Forecast Valid: 8pm EDT Apr 18, 2026-6pm EDT Apr 25, 2026

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

Tonight

SE wind 5 to 7 kt. A chance of showers after 5am. Areas of fog after 11pm. Seas 1 ft or less.

Sunday

SE wind 5 to 8 kt becoming NW 10 to 15 kt in the morning. Winds could gust as high as 25 kt. Showers. Patchy fog before 8am. Seas 1 ft or less.

Sunday Night

WNW wind 6 to 9 kt. Partly cloudy. Seas 1 ft or less.

Monday

NW wind around 11 kt. A slight chance of showers. Seas 1 ft or less.

Monday Night

NNW wind around 12 kt. Mostly clear. Seas 1 ft or less.

Tuesday

N wind 5 to 8 kt becoming variable and less than 5 kt. Sunny. Seas 1 ft or less.

Tuesday Night

SSW wind 9 to 12 kt. Increasing clouds. Seas 1 ft or less.

Wednesday

SSW wind around 9 kt becoming WSW in the afternoon. Mostly cloudy. Seas 1 ft or less.

Wednesday Night

N wind 5 to 7 kt. Mostly clear. 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.