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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

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:NNW wind 7 to 12 kt becoming N. A chance of rain before 2am. Seas 1 ft or less.

      N 12kt
      < 1ft

    • Monday

      Monday:NE wind 10 to 15 kt. Partly sunny. Seas around 1 ft.

      NE 15kt
      1ft

    • Monday Night

      Monday Night:NE wind 10 to 15 kt. A chance of rain, mainly after 2am. Seas 1 ft or less.

      NE 15kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind around 16 kt, with gusts as high as 23 kt. A chance of rain. Seas around 1 ft.

      ENE 16kt
      1ft

    • Tuesday Night

      Tuesday Night:NE wind 18 to 21 kt, with gusts as high as 28 kt. A slight chance of rain before 2am. Seas around 1 ft.

      NE 21kt
      1ft

    • Wednesday

      Wednesday:NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

      NE 20kt
      1ft

    • Wednesday Night

      Wednesday Night:NE wind 18 to 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

      NE 20kt
      1ft

    • Thursday

      Thursday:NE wind 15 to 18 kt, with gusts as high as 27 kt. Mostly cloudy. Seas around 1 ft.

      NE 18kt
      1ft

    • Thursday Night

      Thursday Night:NNE wind around 18 kt, with gusts as high as 26 kt. A chance of showers. Seas around 1 ft.

      NNE 18kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:08 pm EDT Sep 20, 2026
Forecast Valid: 12am EDT Sep 21, 2026-6pm EDT Sep 27, 2026

View Nearby Observations

Detailed Forecast


Overnight
NNW wind 7 to 12 kt becoming N. A chance of rain before 2am. Seas 1 ft or less.
Monday
NE wind 10 to 15 kt. Partly sunny. Seas around 1 ft.
Monday Night
NE wind 10 to 15 kt. A chance of rain, mainly after 2am. Seas 1 ft or less.
Tuesday
ENE wind around 16 kt, with gusts as high as 23 kt. A chance of rain. Seas around 1 ft.
Tuesday Night
NE wind 18 to 21 kt, with gusts as high as 28 kt. A slight chance of rain before 2am. Seas around 1 ft.
Wednesday
NE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.
Wednesday Night
NE wind 18 to 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.
Thursday
NE wind 15 to 18 kt, with gusts as high as 27 kt. Mostly cloudy. Seas around 1 ft.
Thursday Night
NNE wind around 18 kt, with gusts as high as 26 kt. A chance of showers. Seas around 1 ft.

*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: 2:08 pm EDT Sep 20, 2026
Forecast Valid: 12am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
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