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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:WSW wind 5 to 10 kt becoming N after midnight. A chance of showers and thunderstorms.  Patchy fog after 11pm.  Seas around 2 ft.

      WSW 10kt
      2ft

    • Saturday

      Saturday:ENE wind 11 to 13 kt. A slight chance of showers before 8am, then a chance of showers after 11am.   Seas 2 to 3 ft.

      ENE 13kt
      2-3ft

    • Saturday Night

      Saturday Night:E wind 6 to 8 kt becoming NE after midnight. Mostly cloudy, then gradually becoming clear. Seas around 3 ft.

      E 8kt
      3ft

    • Sunday

      Sunday:NNE wind 5 to 8 kt becoming SSE in the afternoon. Sunny. Seas around 2 ft.

      NNE 8kt
      2ft

    • Sunday Night

      Sunday Night:S wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.

      S 9kt⇓
      2ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas around 2 ft.

      ⇑S 13kt
      2ft

    • Monday Night

      Monday Night:SW wind 14 to 17 kt. Mostly clear. Seas 3 to 4 ft.

      SW 17kt
      3-4ft

    • Tuesday

      Tuesday:SW wind 12 to 15 kt. Sunny. Seas 2 to 3 ft.

      SW 15kt
      2-3ft

    • Tuesday Night

      Tuesday Night:SW wind 16 to 18 kt. Mostly clear. Seas around 4 ft.

      SW 18kt
      4ft


Associated Zone Forecast which includes this point

Last Update: 4:23 pm EDT Jul 10, 2026
Forecast Valid: 6pm EDT Jul 10, 2026-6pm EDT Jul 17, 2026

View Nearby Observations

Detailed Forecast


Tonight
WSW wind 5 to 10 kt becoming N after midnight. A chance of showers and thunderstorms. Patchy fog after 11pm. Seas around 2 ft.
Saturday
ENE wind 11 to 13 kt. A slight chance of showers before 8am, then a chance of showers after 11am. Seas 2 to 3 ft.
Saturday Night
E wind 6 to 8 kt becoming NE after midnight. Mostly cloudy, then gradually becoming clear. Seas around 3 ft.
Sunday
NNE wind 5 to 8 kt becoming SSE in the afternoon. Sunny. Seas around 2 ft.
Sunday Night
S wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.
Monday
Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas around 2 ft.
Monday Night
SW wind 14 to 17 kt. Mostly clear. Seas 3 to 4 ft.
Tuesday
SW wind 12 to 15 kt. Sunny. Seas 2 to 3 ft.
Tuesday Night
SW wind 16 to 18 kt. Mostly clear. Seas around 4 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: 4:23 pm EDT Jul 10, 2026
Forecast Valid: 6pm EDT Jul 10, 2026-6pm EDT Jul 17, 2026
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