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New York, NY Local Forecast Office

10NM E Islip NY

Marine Point Forecast

[NOTICE]

Today
⇑SSW 26kt
1-2ft

Gale Warning
Tonight
SW 26kt⇓
2ft
Thursday
WNW 26kt
1-2ft
Thursday Night
W 30kt
2ft
Friday
W 21kt
1ft
Friday Night
W 15kt
1ft
Saturday
⇑W 18kt
1ft
Saturday Night
W 18kt
1ft
Sunday
⇑WNW 22kt
1ft

Associated Zone Forecast which includes this point

Last Update: 2:32 am EST Dec 10, 2025
Forecast Valid: 6am EST Dec 10, 2025-6pm EST Dec 16, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EST EARLY THIS

Today

SSW wind 18 to 21 kt increasing to 23 to 26 kt in the afternoon. Winds could gust as high as 35 kt. A chance of rain, mainly after 4pm. Seas 1 to 2 ft.

Tonight

SW wind 23 to 26 kt becoming WSW 20 to 23 kt after midnight. Rain, mainly between 7pm and 10pm. Seas around 2 ft.

Thursday

WNW wind 23 to 26 kt, with gusts as high as 35 kt. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

W wind 25 to 30 kt. Partly cloudy. Seas around 2 ft.

Friday

W wind 17 to 21 kt. Mostly sunny. Seas around 1 ft.

Friday Night

W wind 11 to 15 kt. A chance of snow after 1am. Seas around 1 ft.

Saturday

W wind 10 to 13 kt increasing to 15 to 18 kt in the afternoon. Partly sunny. Seas around 1 ft.

Saturday Night

W wind 14 to 18 kt. A chance of snow. Seas around 1 ft.

Sunday

WNW wind 14 to 17 kt increasing to 19 to 22 kt in the afternoon. A chance of snow. Seas around 1 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.