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12NM NW Islip NY

[NOTICE]

Last Update: 4:29 am EDT Jul 19, 2026
Forecast Valid: 8am EDT Jul 19, 2026-6pm EDT Jul 25, 2026

Today

NNW wind 9 to 13 kt, with gusts as high as 20 kt. Sunny. Seas 1 ft or less.

Tonight

NNW wind around 6 kt. Mostly clear. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

S wind 5 to 7 kt. Increasing clouds. Seas 1 ft or less.

Tuesday

SSE wind 8 to 12 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Tuesday Night

SSE wind around 12 kt becoming SSW after midnight. Showers and possibly a thunderstorm. Seas 1 ft or less.

Wednesday

WSW wind around 12 kt. Showers likely, with thunderstorms also possible after 2pm. Seas around 1 ft.

Wednesday Night

WNW wind around 9 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Seas around 1 ft.

Thursday

NNW wind 6 to 8 kt. Mostly sunny. Seas around 1 ft.

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.