For More Weather Information:

49NM SSE Islip NY

[NOTICE]

Last Update: 8:48 pm EDT Oct 17, 2026
Forecast Valid: 11pm EDT Oct 17, 2026-6pm EDT Oct 24, 2026

Overnight

NNE wind 23 to 25 kt, with gusts as high as 31 kt. Mostly clear. Seas around 7 ft.

Sunday

NE wind 18 to 22 kt, with gusts as high as 28 kt. Sunny. Seas 6 to 7 ft.

Sunday Night

NE wind 16 to 20 kt, with gusts as high as 26 kt. Partly cloudy. Seas 5 to 6 ft.

Monday

NE wind 24 to 27 kt, with gusts as high as 33 kt. Partly sunny. Seas 9 ft building to 12 ft.

Monday Night

NNE wind 25 to 30 kt, with gusts as high as 36 kt. A chance of showers, mainly after 8pm. Seas 13 to 14 ft.

Tuesday

NNE wind 30 to 32 kt, with gusts as high as 39 kt. Mostly cloudy. Seas around 14 ft.

Tuesday Night

NNE wind 29 to 33 kt, with gusts as high as 42 kt. Mostly cloudy. Seas around 14 ft.

Wednesday

NE wind around 36 kt, with gusts as high as 46 kt. Partly sunny. Seas 16 ft building to 18 ft.

Wednesday Night

NE wind around 33 kt, with gusts as high as 41 kt. A chance of showers. Seas 16 to 17 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.