For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 1:55 am EDT Sep 17, 2026
Forecast Valid: 10am EDT Sep 17, 2026-6pm EDT Sep 23, 2026

Today

SSW wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.

Tonight

S wind around 9 kt becoming WSW after midnight. A chance of showers, mainly after 2am. Seas 1 ft or less.

Friday

N wind 8 to 10 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

N wind 9 to 12 kt. Partly cloudy. Seas 1 ft or less.

Saturday

NE wind 6 to 11 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

SE wind 6 to 8 kt. Mostly cloudy. Seas 1 ft or less.

Sunday

S wind 10 to 12 kt. Showers after 8am. Seas 1 ft or less.

Sunday Night

WSW wind 10 to 15 kt becoming N after midnight. Showers likely. Seas 1 ft or less.

Monday

NE wind 10 to 15 kt. Partly sunny. Seas around 1 ft.

*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.