Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

Today
S 7kt
2ft
Tonight
WSW 6kt
2ft
Juneteenth
⇑SSW 14kt
2-3ft
Thursday Night
SW 14kt
3ft
Friday
WNW 10kt
3ft
Friday Night
W 9kt
2ft
Saturday
SSW 10kt
2ft
Saturday Night
SW 10kt
2ft
Sunday
SSW 12kt
2ft

Associated Zone Forecast which includes this point

Last Update: 6:49 am EDT Jun 18, 2025
Forecast Valid: 8am EDT Jun 18, 2025-6pm EDT Jun 24, 2025

View Nearby Observations

Detailed Forecast

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...

Today

S wind 5 to 7 kt. A slight chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Widespread dense fog, mainly before 9am. Seas around 2 ft.

Tonight

SSE wind around 6 kt becoming WSW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm. Seas around 2 ft.

Juneteenth

SSW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Seas 2 to 3 ft.

Thursday Night

SW wind 12 to 14 kt becoming W after midnight. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Seas around 3 ft.

Friday

WNW wind around 10 kt. Sunny. Seas around 3 ft.

Friday Night

W wind 6 to 9 kt. Mostly clear. Seas around 2 ft.

Saturday

W wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.

Saturday Night

SW wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Sunday

SSW wind 9 to 12 kt. Partly sunny. Seas around 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.