For More Weather Information:

8NM SW Islip NY

[NOTICE]

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

Today

W wind 7 to 10 kt becoming N in the morning. Mostly sunny. Seas around 1 ft.

Tonight

NNE wind 9 to 12 kt increasing to 12 to 15 kt after midnight. Partly cloudy. Seas around 1 ft.

Saturday

NE wind 10 to 14 kt becoming E in the afternoon. Mostly sunny. Seas around 1 ft.

Saturday Night

ESE wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Sunday

SE wind 10 to 13 kt. Showers likely, mainly after 2pm. Seas around 1 ft.

Sunday Night

SSE wind around 13 kt becoming E after midnight. Showers. Seas 1 to 2 ft.

Monday

NE wind 15 to 18 kt. Showers likely, mainly before 8am. Seas around 2 ft.

Monday Night

ENE wind 16 to 20 kt, with gusts as high as 26 kt. A chance of showers. Seas around 2 ft.

Tuesday

ENE wind 22 to 25 kt, with gusts as high as 34 kt. A chance of showers. Seas 3 to 4 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.