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12NM NW Islip NY

[NOTICE]

Last Update: 2:49 pm EDT Aug 21, 2026
Forecast Valid: 6pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026

Tonight

NE wind 5 to 8 kt. Mostly cloudy. Seas 1 ft or less.

Saturday

NE wind around 6 kt becoming variable and less than 5 kt in the afternoon. A slight chance of showers after 2pm. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SSW around 6 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

Sunday Night

SW wind 6 to 8 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.

Monday

W wind 6 to 8 kt. Sunny. Seas 1 ft or less.

Monday Night

W wind around 7 kt. Mostly clear. Seas 1 ft or less.

Tuesday

W wind around 8 kt. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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.