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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Tonight
NNW 18kt
1ft
Monday
NW 12kt
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
Light Wind
< 1ft
Tuesday Night
W 9kt
< 1ft
Wednesday
WNW 16kt
< 1ft
Wednesday Night
WNW 16kt
1ft
Thursday
NW 13kt
1ft
Thursday Night
NW 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 5:59 pm EST Feb 8, 2026
Forecast Valid: 10pm EST Feb 8, 2026-6pm EST Feb 15, 2026

View Nearby Observations

Detailed Forecast

...FREEZING SPRAY ADVISORY IN EFFECT UNTIL 6 AM EST MONDAY...

Tonight

NNW wind 14 to 18 kt. Mostly clear. Seas around 1 ft.

Monday

NW wind 9 to 12 kt. Sunny. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. A chance of snow after 1pm, mixing with rain after 4pm. Seas 1 ft or less.

Tuesday Night

SSW wind 5 to 9 kt becoming W after midnight. A chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 1am. Seas 1 ft or less.

Wednesday

WNW wind 13 to 16 kt. Mostly sunny. Seas 1 ft or less.

Wednesday Night

WNW wind 13 to 16 kt. Partly cloudy. Seas around 1 ft.

Thursday

NW wind around 13 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

NW wind around 11 kt. Partly cloudy. 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.