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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:W wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. A slight chance of showers after 5pm. Seas 1 ft or less.

      ⇑W 13kt
      < 1ft

    • Tonight

      Tonight:WNW wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of showers before 8pm, then a slight chance of showers after 2am. Seas 1 ft or less.

      WNW 6kt⇓
      < 1ft

    • Saturday

      Saturday:S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      ⇑S 13kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

      S 9kt⇓
      < 1ft

    • Sunday

      Sunday:WSW wind 5 to 8 kt. Mostly sunny. Seas 1 ft or less.

      WSW 8kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming N around 6 kt after midnight. Showers, mainly after 2am. Seas 1 ft or less.

      ⇑N 6kt
      < 1ft

    • Monday

      Monday:N wind around 9 kt. Showers, mainly before 2pm. Seas 1 ft or less.

      N 9kt
      < 1ft

    • Monday Night

      Monday Night:NNW wind 5 to 9 kt. A chance of showers. Seas 1 ft or less.

      NNW 9kt
      < 1ft

    • Tuesday

      Tuesday:NNW wind around 11 kt. Sunny. Seas 1 ft or less.

      NNW 11kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:46 am EDT May 8, 2026
Forecast Valid: 9am EDT May 8, 2026-6pm EDT May 14, 2026

View Nearby Observations

Detailed Forecast


Today
W wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. A slight chance of showers after 5pm. Seas 1 ft or less.
Tonight
WNW wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of showers before 8pm, then a slight chance of showers after 2am. Seas 1 ft or less.
Saturday
S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Saturday Night
S wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.
Sunday
WSW wind 5 to 8 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
Variable winds less than 5 kt becoming N around 6 kt after midnight. Showers, mainly after 2am. Seas 1 ft or less.
Monday
N wind around 9 kt. Showers, mainly before 2pm. Seas 1 ft or less.
Monday Night
NNW wind 5 to 9 kt. A chance of showers. Seas 1 ft or less.
Tuesday
NNW wind around 11 kt. Sunny. 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: 7:46 am EDT May 8, 2026
Forecast Valid: 9am EDT May 8, 2026-6pm EDT May 14, 2026
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