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12NM NW Islip NY

[NOTICE]

Last Update: 2:28 pm EDT Aug 15, 2026
Forecast Valid: 4pm EDT Aug 15, 2026-6pm EDT Aug 22, 2026

Tonight

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

Sunday

Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. A slight chance of showers after 5pm. Seas 1 ft or less.

Sunday Night

S wind 12 to 15 kt. Showers, mainly after 11pm. Seas 1 to 2 ft.

Monday

S wind 6 to 10 kt becoming WNW in the afternoon. Showers, mainly before 2pm. Seas around 1 ft.

Monday Night

Variable winds less than 5 kt becoming NNW around 6 kt after midnight. A slight chance of showers before 8pm. Seas 1 ft or less.

Tuesday

N wind around 6 kt becoming variable and less than 5 kt in the morning. Sunny. Seas 1 ft or less.

Tuesday Night

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

Wednesday

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

Wednesday Night

S wind 7 to 9 kt becoming WSW after midnight. A chance of showers. 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.