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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Saturday

      Saturday:NW wind 7 to 11 kt becoming WSW in the afternoon. Sunny. Seas around 2 ft.

      WSW 11kt
      2ft

    • Saturday Night

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

      SW 11kt⇓
      2ft

    • Sunday

      Sunday:S wind 7 to 12 kt increasing to 14 to 19 kt. A slight chance of showers after 2pm. Seas 2 to 3 ft.

      ⇑S 19kt
      2-3ft

    • Sunday Night

      Sunday Night:S wind 17 to 20 kt becoming WSW 13 to 16 kt after midnight. A slight chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Seas 3 to 4 ft.

      S 20kt⇓
      3-4ft

    • Monday

      Monday:NW wind 10 to 13 kt becoming W in the afternoon. A slight chance of showers before 8am. Seas 2 to 3 ft.

      NW 13kt
      2-3ft

    • Monday Night

      Monday Night:W wind 7 to 11 kt becoming N after midnight. Partly cloudy. Seas 2 to 3 ft.

      W 11kt
      2-3ft

    • Tuesday

      Tuesday:N wind 5 to 8 kt becoming SW 9 to 12 kt in the afternoon. Partly sunny. Seas around 2 ft.

      ⇑SW 12kt
      2ft

    • Tuesday Night

      Tuesday Night:SW wind 10 to 13 kt decreasing to 6 to 9 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

      SW 13kt⇓
      2-3ft

    • Wednesday

      Wednesday:S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      ⇑S 13kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 8:13 pm EDT Jun 12, 2026
Forecast Valid: 2am EDT Jun 13, 2026-6pm EDT Jun 19, 2026

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Detailed Forecast


Saturday
NW wind 7 to 11 kt becoming WSW in the afternoon. Sunny. Seas around 2 ft.
Saturday Night
SW wind 6 to 11 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.
Sunday
S wind 7 to 12 kt increasing to 14 to 19 kt. A slight chance of showers after 2pm. Seas 2 to 3 ft.
Sunday Night
S wind 17 to 20 kt becoming WSW 13 to 16 kt after midnight. A slight chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Seas 3 to 4 ft.
Monday
NW wind 10 to 13 kt becoming W in the afternoon. A slight chance of showers before 8am. Seas 2 to 3 ft.
Monday Night
W wind 7 to 11 kt becoming N after midnight. Partly cloudy. Seas 2 to 3 ft.
Tuesday
N wind 5 to 8 kt becoming SW 9 to 12 kt in the afternoon. Partly sunny. Seas around 2 ft.
Tuesday Night
SW wind 10 to 13 kt decreasing to 6 to 9 kt after midnight. Partly cloudy. Seas 2 to 3 ft.
Wednesday
S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Mostly sunny. Seas around 2 ft.

Winds and seas may be higher in and near tstms.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 8:13 pm EDT Jun 12, 2026
Forecast Valid: 2am EDT Jun 13, 2026-6pm EDT Jun 19, 2026
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