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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

Today
S 9kt
2ft
Tonight
S 8kt
2ft
Wednesday
S 13kt
2-3ft
Wednesday Night
SSW 17kt
4ft
Thursday
WSW 17kt
4ft
Thursday Night
NW 13kt
2-3ft
Friday
⇑S 18kt
2-3ft
Friday Night
S 21kt
5ft
Saturday
W 16kt
3-4ft

Associated Zone Forecast which includes this point

Last Update: 2:07 am EDT Mar 10, 2026
Forecast Valid: 5am EDT Mar 10, 2026-6pm EDT Mar 16, 2026

View Nearby Observations

Detailed Forecast

...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...

Today

S wind 5 to 9 kt. Areas of fog before 11am. Seas around 2 ft.

Tonight

S wind around 8 kt. Mostly cloudy. Seas around 2 ft.

Wednesday

S wind 8 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.

Wednesday Night

SSW wind around 17 kt, with gusts as high as 24 kt. A chance of rain. Seas around 4 ft.

Thursday

WSW wind around 17 kt becoming WNW in the afternoon. Winds could gust as high as 23 kt. Rain likely before 5pm, then a chance of rain and snow. Seas around 4 ft.

Thursday Night

NW wind 9 to 13 kt. A chance of rain and snow before 8pm. Seas 2 to 3 ft.

Friday

W wind 7 to 10 kt becoming S 13 to 18 kt in the morning. Winds could gust as high as 25 kt. Increasing clouds. Seas 2 to 3 ft.

Friday Night

S wind 18 to 21 kt becoming SW after midnight. Winds could gust as high as 28 kt. Mostly cloudy. Seas around 5 ft.

Saturday

W wind 12 to 16 kt, with gusts as high as 22 kt. Mostly sunny. Seas 3 to 4 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.