For More Weather Information:

13NM NNW Islip NY

[NOTICE]

Last Update: 5:16 am EDT Sep 18, 2026
Forecast Valid: 9am EDT Sep 18, 2026-6pm EDT Sep 24, 2026

Today

NNW wind around 9 kt. Sunny. Seas 1 ft or less.

Tonight

N wind 9 to 14 kt becoming NE after midnight. Winds could gust as high as 20 kt. Partly cloudy. Seas 1 ft or less.

Saturday

ENE wind 9 to 12 kt decreasing to 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Saturday Night

ESE wind around 7 kt. Mostly cloudy. Seas 1 ft or less.

Sunday

SE wind around 8 kt. Showers, mainly after 2pm. Seas 1 ft or less.

Sunday Night

SE wind 9 to 11 kt becoming ENE after midnight. Showers. Seas 1 ft or less.

Monday

NE wind 11 to 14 kt, with gusts as high as 20 kt. Showers likely, mainly before 8am. Seas 1 to 2 ft.

Monday Night

ENE wind 13 to 18 kt, with gusts as high as 26 kt. A chance of showers. Seas 1 to 2 ft.

Tuesday

ENE wind 18 to 21 kt, with gusts as high as 29 kt. A chance of showers. Seas around 3 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.