For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 2:08 pm EDT Sep 20, 2026
Forecast Valid: 2pm EDT Sep 20, 2026-6pm EDT Sep 26, 2026

This Afternoon

SSE wind around 10 kt. Rain. Seas 1 ft or less.

Tonight

W wind 5 to 8 kt becoming N 9 to 12 kt after midnight. Rain likely, mainly before 8pm. Seas 1 ft or less.

Monday

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

Monday Night

NE wind 10 to 15 kt. A chance of rain, mainly after 2am. Seas 1 ft or less.

Tuesday

ENE wind around 16 kt, with gusts as high as 23 kt. A chance of rain. Seas around 1 ft.

Tuesday Night

NE wind 18 to 21 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

Wednesday

NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

Wednesday Night

NE wind 18 to 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

Thursday

NE wind 15 to 18 kt, with gusts as high as 27 kt. Mostly cloudy. 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.