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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSE wind 5 to 8 kt. A chance of showers and thunderstorms between 2am and 5am, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

      SSE 8kt
      < 1ft

    • Sunday

      Sunday:ESE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Showers and possibly a thunderstorm before 2pm, then a slight chance of showers. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

      ESE 6kt⇓
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming WSW 5 to 7 kt after midnight. A chance of showers, mainly after 5am. Seas 1 ft or less.

      ⇑WSW 7kt
      < 1ft

    • Monday

      Monday:NNW wind around 11 kt. A chance of showers before 8am. Seas 1 ft or less.

      NNW 11kt
      < 1ft

    • Monday Night

      Monday Night:NNE wind around 11 kt. Mostly clear. Seas 1 ft or less.

      NNE 11kt
      < 1ft

    • Tuesday

      Tuesday:NE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

      NE 8kt⇓
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

      SSE 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

      S 6kt⇓
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:46 pm EDT Sep 12, 2026
Forecast Valid: 5pm EDT Sep 12, 2026-6pm EDT Sep 19, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSE wind 5 to 8 kt. A chance of showers and thunderstorms between 2am and 5am, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Sunday
ESE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Showers and possibly a thunderstorm before 2pm, then a slight chance of showers. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Sunday Night
Variable winds less than 5 kt becoming WSW 5 to 7 kt after midnight. A chance of showers, mainly after 5am. Seas 1 ft or less.
Monday
NNW wind around 11 kt. A chance of showers before 8am. Seas 1 ft or less.
Monday Night
NNE wind around 11 kt. Mostly clear. Seas 1 ft or less.
Tuesday
NE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Wednesday Night
S wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

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: 40.91°N 73.39°W
Last Update: 2:46 pm EDT Sep 12, 2026
Forecast Valid: 5pm EDT Sep 12, 2026-6pm EDT Sep 19, 2026
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