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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight: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

    • Saturday

      Saturday:SW wind 5 to 8 kt increasing to 11 to 14 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑SW 14kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind 8 to 10 kt. A chance of showers and thunderstorms before 2am.   Seas 1 ft or less.

      WSW 10kt
      < 1ft

    • Sunday

      Sunday:WNW wind around 10 kt. A slight chance of showers after 2pm.   Seas 1 ft or less.

      WNW 10kt
      < 1ft

    • Sunday Night

      Sunday Night:N wind around 11 kt. A slight chance of showers before 8pm.   Seas 1 ft or less.

      N 11kt
      < 1ft

    • Monday

      Monday:NNE wind 9 to 12 kt becoming E 6 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

      NNE 12kt⇓
      < 1ft

    • Monday Night

      Monday Night:S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

      S 8kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑SSW 7kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind 5 to 8 kt. Mostly clear. Seas 1 ft or less.

      SW 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT Jun 5, 2026
Forecast Valid: 9pm EDT Jun 5, 2026-6pm EDT Jun 12, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.
Saturday
SW wind 5 to 8 kt increasing to 11 to 14 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Saturday Night
WSW wind 8 to 10 kt. A chance of showers and thunderstorms before 2am. Seas 1 ft or less.
Sunday
WNW wind around 10 kt. A slight chance of showers after 2pm. Seas 1 ft or less.
Sunday Night
N wind around 11 kt. A slight chance of showers before 8pm. Seas 1 ft or less.
Monday
NNE wind 9 to 12 kt becoming E 6 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSW 5 to 7 kt in the morning. Sunny. Seas 1 ft or less.
Tuesday Night
SW wind 5 to 8 kt. Mostly clear. 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: 2:35 pm EDT Jun 5, 2026
Forecast Valid: 9pm EDT Jun 5, 2026-6pm EDT Jun 12, 2026
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