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Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Monday

      Monday:NE wind 11 to 15 kt. Mostly cloudy. Seas 1 ft or less.

      NE 15kt
      < 1ft

    • Monday Night

      Monday Night:NE wind 10 to 14 kt. A chance of rain, mainly after 2am. Seas 1 ft or less.

      NE 14kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind 16 to 18 kt. A chance of rain. Seas 1 ft or less.

      ENE 18kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NE wind around 21 kt. A slight chance of rain before 2am. Seas 1 ft or less.

      NE 21kt
      < 1ft

    • Wednesday

      Wednesday:NE wind around 21 kt, with gusts as high as 27 kt. A chance of rain, mainly between 8am and 2pm. Seas 1 ft or less.

      NE 21kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NE wind 17 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 1 ft or less.

      NE 19kt
      < 1ft

    • Thursday

      Thursday:NE wind 16 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 1 ft or less.

      NE 19kt
      < 1ft

    • Thursday Night

      Thursday Night:NE wind around 17 kt, with gusts as high as 24 kt. A chance of showers. Seas 1 ft or less.

      NE 17kt
      < 1ft

    • Friday

      Friday:NNE wind 16 to 20 kt, with gusts as high as 28 kt. A chance of showers. Seas 1 ft or less.

      NNE 20kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:08 pm EDT Sep 20, 2026
Forecast Valid: 1am EDT Sep 21, 2026-6pm EDT Sep 27, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH

Monday
NE wind 11 to 15 kt. Mostly cloudy. Seas 1 ft or less.
Monday Night
NE wind 10 to 14 kt. A chance of rain, mainly after 2am. Seas 1 ft or less.
Tuesday
ENE wind 16 to 18 kt. A chance of rain. Seas 1 ft or less.
Tuesday Night
NE wind around 21 kt. A slight chance of rain before 2am. Seas 1 ft or less.
Wednesday
NE wind around 21 kt, with gusts as high as 27 kt. A chance of rain, mainly between 8am and 2pm. Seas 1 ft or less.
Wednesday Night
NE wind 17 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
NE wind 16 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 1 ft or less.
Thursday Night
NE wind around 17 kt, with gusts as high as 24 kt. A chance of showers. Seas 1 ft or less.
Friday
NNE wind 16 to 20 kt, with gusts as high as 28 kt. A chance of showers. 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: 2:08 pm EDT Sep 20, 2026
Forecast Valid: 1am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
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