For More Weather Information:

5NM SSE Islip NY

[NOTICE]

Last Update: 12:46 pm EST Nov 18, 2025
Forecast Valid: 2pm EST Nov 18, 2025-6pm EST Nov 24, 2025

This Afternoon

WNW wind around 13 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 1 ft.

Tonight

WNW wind 5 to 9 kt. Rain likely, mainly after 4am. Seas around 1 ft.

Wednesday

Variable winds less than 5 kt becoming NNE around 6 kt in the morning. Rain likely, mainly before 10am. Seas 1 ft or less.

Wednesday Night

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

Thursday

NNE wind 6 to 8 kt becoming ENE in the afternoon. Partly sunny. Seas 1 ft or less.

Thursday Night

ESE wind 5 to 7 kt becoming SW after midnight. Mostly cloudy. Seas 1 ft or less.

Friday

SW wind 6 to 9 kt increasing to 12 to 15 kt in the afternoon. Mostly cloudy. Seas 1 ft or less.

Friday Night

WSW wind around 11 kt becoming NW after midnight. A chance of rain. Seas 1 ft or less.

Saturday

NNW wind around 11 kt. A chance of rain. 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.