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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Tonight
⇑E 10kt
< 1ft
Sunday
ENE 18kt
< 1ft
Sunday Night
⇑NNE 34kt
1-2ft
Monday
N 34kt⇓
2ft
Monday Night
NW 20kt
1-2ft
Tuesday
WNW 17kt
1ft
Tuesday Night
WNW 14kt⇓
< 1ft
Wednesday
S 10kt
< 1ft
Wednesday Night
SW 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 3:48 pm EST Feb 21, 2026
Forecast Valid: 4pm EST Feb 21, 2026-6pm EST Feb 28, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY

Tonight

Variable winds less than 5 kt becoming E 5 to 10 kt in the evening. A chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Seas 1 ft or less.

Sunday

ENE wind 13 to 18 kt, with gusts as high as 25 kt. Snow, mainly after 1pm. Seas 1 ft or less.

Sunday Night

ENE wind 21 to 26 kt becoming NNE 29 to 34 kt. Winds could gust as high as 40 kt. Snow with areas of blowing snow. The snow could be heavy at times. Seas 1 to 2 ft.

Monday

N wind 29 to 34 kt decreasing to 23 to 28 kt in the afternoon. Winds could gust as high as 43 kt. Snow with areas of blowing snow before 1pm, then snow likely with areas of blowing snow after 1pm. The snow could be heavy at times. Seas around 2 ft.

Monday Night

NW wind 15 to 20 kt, with gusts as high as 28 kt. Areas of blowing snow and a chance of snow before 10pm, then areas of blowing snow after 10pm. Seas 1 to 2 ft.

Tuesday

WNW wind 14 to 17 kt. Sunny. Seas around 1 ft.

Tuesday Night

WNW wind 11 to 14 kt becoming WSW 6 to 9 kt after midnight. Increasing clouds. Seas 1 ft or less.

Wednesday

S wind 8 to 10 kt. A chance of rain and snow before 1pm, then a chance of rain. Seas 1 ft or less.

Wednesday Night

SW wind around 11 kt. A chance of rain. 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.