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18NM WSW Islip NY

[NOTICE]

Last Update: 2:23 pm EDT Oct 8, 2026
Forecast Valid: 3pm EDT Oct 8, 2026-6pm EDT Oct 15, 2026

This Afternoon

W wind around 11 kt. Sunny. Seas 1 ft or less.

Tonight

WNW wind 6 to 9 kt. Mostly clear. Seas 1 ft or less.

Friday

WNW wind 7 to 11 kt. Sunny. Seas 1 ft or less.

Friday Night

NW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

SSE wind around 6 kt. Mostly cloudy. Seas 1 ft or less.

Sunday

SSE wind 7 to 10 kt. A chance of showers after 2pm. Seas 1 ft or less.

Sunday Night

ESE wind around 10 kt. Showers. Seas 1 ft or less.

Columbus Day

NE wind around 9 kt becoming N in the afternoon. A chance of showers. Seas 1 ft or less.

*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.