For More Weather Information:

New York, NY Local Forecast Office

7NM S Islip NY

Marine Point Forecast

[NOTICE]

This Afternoon
S 9kt
2ft
Tonight
SW 13kt
2-3ft
Sunday
SSW 13kt
2-3ft
Sunday Night
SW 16kt⇓
3-4ft
Monday
S 12kt
2-3ft
Monday Night
SSW 13kt
3ft
Tuesday
SSW 9kt
3ft
Tuesday Night
S 7kt
3ft
Wednesday
NNW 6kt
3ft

Associated Zone Forecast which includes this point

Last Update: 7:10 am EDT Jul 5, 2025
Forecast Valid: 1pm EDT Jul 5, 2025-6pm EDT Jul 11, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

S wind 7 to 9 kt. Mostly sunny. Seas around 2 ft.

Tonight

SW wind 11 to 13 kt. Partly cloudy. Seas 2 to 3 ft.

Sunday

SSW wind 10 to 13 kt. Sunny. Seas 2 to 3 ft.

Sunday Night

SW wind 13 to 16 kt decreasing to 10 to 13 kt after midnight. Patchy fog after 2am. Seas 3 to 4 ft.

Monday

S wind 8 to 12 kt. A slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Seas 2 to 3 ft.

Monday Night

SSW wind 9 to 13 kt. A chance of showers after 8pm. Seas around 3 ft.

Tuesday

SSW wind 7 to 9 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas around 3 ft.

Tuesday Night

S wind around 7 kt becoming W after midnight. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Seas around 3 ft.

Wednesday

NNW wind around 6 kt becoming S in the afternoon. Mostly sunny. Seas around 3 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.