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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Overnight
NW 6kt⇓
< 1ft
Thursday
W 10kt
< 1ft
Thursday Night
NW 10kt
< 1ft
Friday
Light Wind
< 1ft
Friday Night
SSW 6kt⇓
< 1ft
Saturday
⇑S 12kt
< 1ft
Saturday Night
SW 12kt
< 1ft
Sunday
WNW 11kt
< 1ft
Sunday Night
NNW 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 8:08 pm EDT Jul 15, 2026
Forecast Valid: 12am EDT Jul 16, 2026-6pm EDT Jul 22, 2026

View Nearby Observations

Detailed Forecast

Overnight

NW wind around 6 kt becoming variable and less than 5 kt. Areas of smoke. Seas 1 ft or less.

Thursday

W wind 5 to 10 kt. Patchy smoke. Seas 1 ft or less.

Thursday Night

NW wind 6 to 10 kt becoming N after midnight. Widespread smoke, mainly after midnight. Seas 1 ft or less.

Friday

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

Friday Night

SSW wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Saturday

S wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Saturday Night

SW wind around 12 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Seas 1 ft or less.

Sunday

WNW wind 9 to 11 kt. Showers likely. Seas 1 ft or less.

Sunday Night

NNW wind 5 to 7 kt. Mostly clear. Seas 1 ft or less.

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.