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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Today
NW 12kt
1ft
Tonight
NW 6kt
1ft
Thursday
NNW 6kt
1ft
Thursday Night
Light Wind
< 1ft
Friday
Light Wind
< 1ft
Friday Night
⇑W 14kt
1ft
Saturday
⇑NW 32kt
2-3ft
Saturday Night
NW 35kt⇓
2-3ft
Sunday
NW 20kt⇓
1-2ft

Associated Zone Forecast which includes this point

Last Update: 2:42 am EST Feb 4, 2026
Forecast Valid: 5am EST Feb 4, 2026-6pm EST Feb 10, 2026

View Nearby Observations

Detailed Forecast

Today

NW wind 8 to 12 kt. Cloudy through mid morning, then gradual clearing. Seas around 1 ft.

Tonight

NW wind around 6 kt becoming N in the evening. Partly cloudy. Seas around 1 ft.

Thursday

NNW wind around 6 kt. Sunny. Seas around 1 ft.

Thursday Night

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

Friday

Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

Friday Night

SW wind 5 to 8 kt becoming W 11 to 14 kt after midnight. Snow showers likely, mainly after 1am. Seas around 1 ft.

Saturday

NW wind 22 to 27 kt increasing to 27 to 32 kt in the afternoon. Winds could gust as high as 40 kt. A chance of snow showers before 7am. Seas 2 to 3 ft.

Saturday Night

NW wind 32 to 35 kt decreasing to 28 to 31 kt after midnight. Winds could gust as high as 43 kt. Mostly clear. Seas 2 to 3 ft.

Sunday

NW wind 17 to 20 kt decreasing to 14 to 17 kt in the afternoon. Winds could gust as high as 28 kt. Mostly sunny. 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.