For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

Today
S 16kt
2-3ft
Tonight
SW 19kt⇓
4ft
Thursday
SW 12kt
3ft
Thursday Night
W 9kt
3ft
Friday
S 11kt
2-3ft
Friday Night
W 9kt
2ft
Saturday
NNW 9kt
2ft
Saturday Night
WSW 11kt⇓
2ft
Sunday
⇑S 16kt
1-2ft

Associated Zone Forecast which includes this point

Last Update: 3:43 am EDT Jun 10, 2026
Forecast Valid: 10am EDT Jun 10, 2026-6pm EDT Jun 16, 2026

View Nearby Observations

Detailed Forecast

Today

S wind 11 to 16 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 2 to 3 ft.

Tonight

SW wind 16 to 19 kt decreasing to 13 to 16 kt after midnight. A chance of showers and thunderstorms before 2am. Seas around 4 ft.

Thursday

SW wind 10 to 12 kt. A chance of showers and thunderstorms after 2pm. Seas around 3 ft.

Thursday Night

W wind 6 to 9 kt becoming SW in the evening. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Seas around 3 ft.

Friday

W wind 6 to 11 kt becoming S in the afternoon. A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Seas 2 to 3 ft.

Friday Night

S wind around 9 kt becoming NW after midnight. A chance of showers between 8pm and 2am. Seas around 2 ft.

Saturday

NNW wind 7 to 9 kt becoming W in the afternoon. Mostly sunny. Seas around 2 ft.

Saturday Night

WSW wind 6 to 11 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.

Sunday

Variable winds less than 5 kt becoming S 11 to 16 kt in the morning. Sunny. Seas 1 to 2 ft.

Winds and seas may be higher in and near tstms.

*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.