For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 3:40 pm EST Mar 7, 2026
Forecast Valid: 8pm EST Mar 7, 2026-6pm EDT Mar 14, 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EST SUNDAY...

Tonight

SSW wind 10 to 12 kt. Showers likely, mainly after 4am. Areas of dense fog. Seas 1 ft or less.

Sunday

SW wind around 11 kt becoming W in the afternoon. Showers likely, mainly before 1pm. Patchy fog before 10am. Seas 1 ft or less.

Sunday Night

W wind 6 to 9 kt. Mostly clear. Seas 1 ft or less.

Monday

WSW wind 5 to 8 kt becoming SSW 8 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SW wind 5 to 9 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

SSW wind 5 to 8 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

S wind around 8 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

S wind 8 to 11 kt increasing to 12 to 15 kt in the afternoon. Cloudy. Seas 1 ft or less.

Wednesday Night

S wind 17 to 19 kt, with gusts as high as 26 kt. A chance of showers. 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.