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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Overnight
ENE 8kt⇓
< 1ft
Memorial Day
⇑W 6kt
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
Light Wind
< 1ft
Tuesday Night
SW 7kt
1ft
Wednesday
W 8kt
1ft
Wednesday Night
W 6kt
1ft
Thursday
NNW 8kt
1ft
Thursday Night
NNW 6kt
1ft

Associated Zone Forecast which includes this point

Last Update: 7:24 pm EDT May 24, 2026
Forecast Valid: 11pm EDT May 24, 2026-6pm EDT May 31, 2026

View Nearby Observations

Detailed Forecast

Overnight

ENE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Rain likely, mainly after 5am. Areas of fog. Seas 1 ft or less.

Memorial Day

Variable winds less than 5 kt becoming W around 6 kt in the afternoon. Rain likely and possibly a thunderstorm before 8am, then showers and possibly a thunderstorm between 8am and 2pm. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

Tuesday Night

SW wind around 7 kt. Mostly cloudy. Seas around 1 ft.

Wednesday

W wind 5 to 8 kt. Mostly sunny. Seas around 1 ft.

Wednesday Night

W wind around 6 kt becoming NNW after midnight. Mostly cloudy. Seas around 1 ft.

Thursday

NNW wind 6 to 8 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

NNW wind around 6 kt. Partly cloudy. Seas around 1 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.