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12NM NW Islip NY

[NOTICE]

Last Update: 6:12 am EDT Apr 21, 2026
Forecast Valid: 11am EDT Apr 21, 2026-6pm EDT Apr 27, 2026

Today

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tonight

S wind around 11 kt. Showers likely, mainly after 2am. Seas 1 ft or less.

Wednesday

S wind 9 to 12 kt, with gusts as high as 20 kt. Showers likely, mainly before 8am. Seas 1 ft or less.

Wednesday Night

ENE wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of showers before 8pm. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming WNW 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Thursday Night

N wind 5 to 8 kt. Partly cloudy. Seas 1 ft or less.

Friday

N wind around 6 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 ft or less.

Friday Night

E wind around 6 kt. A chance of showers. Seas 1 ft or less.

Saturday

E wind 7 to 9 kt. 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.