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New York, NY Local Forecast Office

12NM NNE Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind 5 to 10 km/h. Showers likely before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Widespread dense fog, mainly before 7am.  Seas 1 m or less.

      S 10km/h
      < 1m

    • Tonight

      Tonight:S wind 5 to 8 km/h becoming WSW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm.   Seas 1 m or less.

      S 8km/h
      < 1m

    • Juneteenth

      Juneteenth:SSW wind 10 to 15 km/h increasing to 18 to 23 km/h. Winds could gust as high as 35 km/h. A chance of showers and thunderstorms after 2pm. Some of the storms could be severe.   Seas 1 m or less.

      ⇑SSW 23km/h
      < 1m

    • Thursday Night

      Thursday Night:SSW wind 18 to 21 km/h becoming W after midnight. Winds could gust as high as 32 km/h. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe.   Seas 1 m or less.

      SSW 21km/h
      < 1m

    • Friday

      Friday:WNW wind around 16 km/h. Sunny. Seas 1 m or less.

      WNW 16km/h
      < 1m

    • Friday Night

      Friday Night:W wind 8 to 11 km/h. Mostly clear. Seas 1 m or less.

      W 11km/h
      < 1m

    • Saturday

      Saturday:W wind 5 to 8 km/h becoming SSW 10 to 13 km/h in the afternoon. Sunny. Seas 1 m or less.

      ⇑SSW 13km/h
      < 1m

    • Saturday Night

      Saturday Night:SW wind 11 to 14 km/h. Mostly cloudy. Seas 1 m or less.

      SW 14km/h
      < 1m

    • Sunday

      Sunday:SW wind 13 to 16 km/h. Partly sunny. Seas 1 m or less.

      SW 16km/h
      < 1m


Associated Zone Forecast which includes this point

Last Update: 3:06 am EDT Jun 18, 2025
Forecast Valid: 5am EDT Jun 18, 2025-6pm EDT Jun 24, 2025

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Detailed Forecast

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM EDT THIS MORNING...

Today
S wind 5 to 10 km/h. Showers likely before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Widespread dense fog, mainly before 7am. Seas 1 m or less.
Tonight
S wind 5 to 8 km/h becoming WSW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm. Seas 1 m or less.
Juneteenth
SSW wind 10 to 15 km/h increasing to 18 to 23 km/h. Winds could gust as high as 35 km/h. A chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Seas 1 m or less.
Thursday Night
SSW wind 18 to 21 km/h becoming W after midnight. Winds could gust as high as 32 km/h. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Seas 1 m or less.
Friday
WNW wind around 16 km/h. Sunny. Seas 1 m or less.
Friday Night
W wind 8 to 11 km/h. Mostly clear. Seas 1 m or less.
Saturday
W wind 5 to 8 km/h becoming SSW 10 to 13 km/h in the afternoon. Sunny. Seas 1 m or less.
Saturday Night
SW wind 11 to 14 km/h. Mostly cloudy. Seas 1 m or less.
Sunday
SW wind 13 to 16 km/h. Partly sunny. Seas 1 m 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: 40.92°N 73.15°W
Last Update: 3:06 am EDT Jun 18, 2025
Forecast Valid: 5am EDT Jun 18, 2025-6pm EDT Jun 24, 2025
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