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New York, NY Local Forecast Office

10NM ESE Islip NY

Marine Point Forecast

[NOTICE]

This Afternoon
ESE 21kt
2ft
Tonight
E 23kt⇓
2ft
Columbus Day
N 18kt⇓
1ft
Monday Night
N 7kt
< 1ft
Tuesday
SE 11kt
< 1ft
Tuesday Night
SW 20kt
1ft
Wednesday
WSW 15kt
1ft
Wednesday Night
NNW 16kt
1ft
Thursday
N 16kt
1ft

Associated Zone Forecast which includes this point

Last Update: 11:12 am EDT Oct 11, 2026
Forecast Valid: 1pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

This Afternoon

ESE wind 18 to 21 kt. Rain. Seas around 2 ft.

Tonight

E wind 20 to 23 kt becoming NNE 16 to 19 kt after midnight. Rain and possibly a thunderstorm, mainly before 2am, then a chance of rain and thunderstorms after 2am. Seas around 2 ft.

Columbus Day

N wind 15 to 18 kt decreasing to 11 to 14 kt in the afternoon. A chance of showers before 11am. Seas around 1 ft.

Monday Night

N wind around 7 kt. Mostly clear. Seas 1 ft or less.

Tuesday

ENE wind 6 to 11 kt becoming S in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SW wind 17 to 20 kt. Partly cloudy. Seas around 1 ft.

Wednesday

WSW wind around 15 kt. Sunny. Seas around 1 ft.

Wednesday Night

NNW wind 13 to 16 kt. Mostly clear. Seas around 1 ft.

Thursday

N wind 11 to 16 kt. Mostly sunny. Seas around 1 ft.

Winds and waves 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.