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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Today
⇑ENE 24kt
1-2ft
Tonight
NE 22kt⇓
1-2ft
Monday
⇑WNW 17kt
1ft
Monday Night
WNW 18kt
2ft
Tuesday
WSW 17kt
1-2ft
Tuesday Night
W 16kt
1ft
Wednesday
WNW 12kt
1ft
Wednesday Night
W 8kt
1ft
Thursday
⇑NW 14kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 5:25 am EST Jan 25, 2026
Forecast Valid: 8am EST Jan 25, 2026-6pm EST Jan 31, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON

Today

ENE wind 9 to 14 kt increasing to 19 to 24 kt. Snow before 4pm, then snow and sleet. The snow could be heavy at times. Seas 1 to 2 ft.

Tonight

NE wind 17 to 22 kt decreasing to 12 to 17 kt after midnight. Winds could gust as high as 30 kt. Sleet before 4am, then a chance of snow and sleet. Seas 1 to 2 ft.

Monday

NNE wind 9 to 12 kt becoming WNW 14 to 17 kt in the afternoon. A chance of snow, mainly before 1pm. Seas around 1 ft.

Monday Night

WNW wind 16 to 18 kt, with gusts as high as 26 kt. Partly cloudy. Seas around 2 ft.

Tuesday

WSW wind 13 to 17 kt. Mostly sunny. Seas 1 to 2 ft.

Tuesday Night

W wind 13 to 16 kt, with gusts as high as 23 kt. Mostly clear. Seas around 1 ft.

Wednesday

WNW wind 9 to 12 kt. Mostly sunny. Seas around 1 ft.

Wednesday Night

W wind around 8 kt becoming NW after midnight. Mostly cloudy. Seas around 1 ft.

Thursday

NW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Partly sunny. 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.