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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Today
⇑WNW 17kt
< 1ft
Tonight
W 15kt
1ft
Tuesday
WSW 12kt
< 1ft
Tuesday Night
W 11kt
< 1ft
Veterans Day
W 8kt⇓
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
E 11kt
< 1ft
Thursday Night
⇑NE 21kt
1-2ft
Friday
NE 22kt⇓
1-2ft

Associated Zone Forecast which includes this point

Last Update: 6:46 am EST Nov 9, 2026
Forecast Valid: 6am EST Nov 9, 2026-6pm EST Nov 15, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

Today

W wind 11 to 14 kt becoming WNW 14 to 17 kt in the afternoon. Winds could gust as high as 27 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

Tonight

W wind 12 to 15 kt. Mostly clear. Seas around 1 ft.

Tuesday

WSW wind 10 to 12 kt. Mostly cloudy, then gradual clearing during the afternoon. Seas 1 ft or less.

Tuesday Night

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

Veterans Day

W wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

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

Thursday

E wind 7 to 11 kt. A chance of rain after 1pm. Seas 1 ft or less.

Thursday Night

NE wind 14 to 17 kt increasing to 18 to 21 kt after midnight. Winds could gust as high as 29 kt. Rain. Seas 1 to 2 ft.

Friday

NE wind 19 to 22 kt decreasing to 16 to 19 kt in the afternoon. Winds could gust as high as 30 kt. Rain. Seas 1 to 2 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.