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Hazardous Weather Conditions

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New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:WNW wind 11 to 14 kt becoming NNW 17 to 20 kt after midnight. Showers and possibly a thunderstorm before 11pm, then a chance of showers between 11pm and 2am, then rain likely after 2am. Seas 1 ft or less.

      ⇑NNW 20kt
      < 1ft

    • Saturday

      Saturday:N wind 19 to 22 kt. Rain likely, mainly before 8am. Seas 1 ft or less.

      N 22kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind around 17 kt. Mostly clear. Seas 1 ft or less.

      N 17kt
      < 1ft

    • Sunday

      Sunday:NE wind 9 to 13 kt. Sunny. Seas 1 ft or less.

      NE 13kt
      < 1ft

    • Sunday Night

      Sunday Night:ENE wind 10 to 15 kt. Mostly clear. Seas 1 ft or less.

      ENE 15kt
      < 1ft

    • Monday

      Monday:NE wind 16 to 19 kt. Partly sunny. Seas 1 ft or less.

      NE 19kt
      < 1ft

    • Monday Night

      Monday Night:NNE wind around 15 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.

      NNE 15kt
      < 1ft

    • Tuesday

      Tuesday:NNE wind 13 to 15 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.

      NNE 15kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NNE wind 12 to 15 kt, with gusts as high as 23 kt. Partly cloudy. Seas 1 ft or less.

      NNE 15kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:27 pm EDT Oct 16, 2026
Forecast Valid: 8pm EDT Oct 16, 2026-6pm EDT Oct 23, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

Tonight
WNW wind 11 to 14 kt becoming NNW 17 to 20 kt after midnight. Showers and possibly a thunderstorm before 11pm, then a chance of showers between 11pm and 2am, then rain likely after 2am. Seas 1 ft or less.
Saturday
N wind 19 to 22 kt. Rain likely, mainly before 8am. Seas 1 ft or less.
Saturday Night
N wind around 17 kt. Mostly clear. Seas 1 ft or less.
Sunday
NE wind 9 to 13 kt. Sunny. Seas 1 ft or less.
Sunday Night
ENE wind 10 to 15 kt. Mostly clear. Seas 1 ft or less.
Monday
NE wind 16 to 19 kt. Partly sunny. Seas 1 ft or less.
Monday Night
NNE wind around 15 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.
Tuesday
NNE wind 13 to 15 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.
Tuesday Night
NNE wind 12 to 15 kt, with gusts as high as 23 kt. Partly cloudy. Seas 1 ft or less.

*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: 40.62°N 73.59°W
Last Update: 7:27 pm EDT Oct 16, 2026
Forecast Valid: 8pm EDT Oct 16, 2026-6pm EDT Oct 23, 2026
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