For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 2:25 pm EDT Sep 16, 2026
Forecast Valid: 2pm EDT Sep 16, 2026-6pm EDT Sep 22, 2026

This Afternoon

SW wind around 6 kt. Mostly sunny. Seas around 1 ft.

Tonight

S wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Patchy fog after 11pm. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Increasing clouds. Seas 1 ft or less.

Thursday Night

S wind around 10 kt becoming WSW after midnight. A chance of showers, mainly before 2am. Seas around 1 ft.

Friday

N wind 8 to 10 kt. Partly sunny through mid morning, then becoming sunny. Seas around 1 ft.

Friday Night

NNE wind 10 to 12 kt. Partly cloudy. Seas around 1 ft.

Saturday

NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas around 1 ft.

Saturday Night

SE wind around 7 kt. A chance of showers. Seas around 1 ft.

Sunday

S wind 9 to 11 kt. Showers likely. 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.