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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:N wind around 7 kt. Scattered showers.   Seas around 3 ft.

      N 7kt
      3ft

    • Tonight

      Tonight:ENE wind 5 to 10 kt. Scattered showers before 8pm.   Seas 2 to 3 ft.

      ENE 10kt
      2-3ft

    • Saturday

      Saturday:ENE wind 6 to 10 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.

      ESE 10kt
      2ft

    • Saturday Night

      Saturday Night:SE wind 7 to 9 kt. A chance of showers after 2am.   Seas around 2 ft.

      SE 9kt
      2ft

    • Sunday

      Sunday:ESE wind 7 to 10 kt becoming NW 12 to 15 kt in the morning. Winds could gust as high as 21 kt. Showers, mainly after 8am.   Seas 2 to 3 ft.

      ⇑NW 15kt
      2-3ft

    • Sunday Night

      Sunday Night:NW wind 8 to 12 kt. Cloudy during the early evening, then gradual clearing. Seas around 2 ft.

      NW 12kt
      2ft

    • Monday

      Monday:WNW wind around 11 kt. Mostly sunny. Seas around 2 ft.

      WNW 11kt
      2ft

    • Monday Night

      Monday Night:NNW wind around 13 kt. Partly cloudy. Seas around 2 ft.

      NNW 13kt
      2ft

    • Tuesday

      Tuesday:N wind 7 to 9 kt becoming S in the afternoon. Sunny. Seas around 1 ft.

      N 9kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:24 pm EDT Apr 17, 2026
Forecast Valid: 5pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
N wind around 7 kt. Scattered showers. Seas around 3 ft.
Tonight
ENE wind 5 to 10 kt. Scattered showers before 8pm. Seas 2 to 3 ft.
Saturday
ENE wind 6 to 10 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.
Saturday Night
SE wind 7 to 9 kt. A chance of showers after 2am. Seas around 2 ft.
Sunday
ESE wind 7 to 10 kt becoming NW 12 to 15 kt in the morning. Winds could gust as high as 21 kt. Showers, mainly after 8am. Seas 2 to 3 ft.
Sunday Night
NW wind 8 to 12 kt. Cloudy during the early evening, then gradual clearing. Seas around 2 ft.
Monday
WNW wind around 11 kt. Mostly sunny. Seas around 2 ft.
Monday Night
NNW wind around 13 kt. Partly cloudy. Seas around 2 ft.
Tuesday
N wind 7 to 9 kt becoming S in the afternoon. Sunny. Seas around 1 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: 40.57°N 73.57°W
Last Update: 2:24 pm EDT Apr 17, 2026
Forecast Valid: 5pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026
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