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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:S wind around 7 kt. Mostly sunny. Seas around 2 ft.

      S 7kt
      2ft

    • Tonight

      Tonight:S wind 5 to 8 kt becoming SW after midnight. Patchy fog after 5am. Seas around 2 ft.

      S 8kt
      2ft

    • Wednesday

      Wednesday:SW wind 5 to 10 kt becoming S in the morning. A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Seas around 2 ft.

      S 10kt
      2ft

    • Wednesday Night

      Wednesday Night:SW wind 10 to 13 kt. A chance of showers and thunderstorms, mainly after 8pm. Seas 2 to 3 ft.

      SW 13kt
      2-3ft

    • Thursday

      Thursday:SSW wind 10 to 13 kt. A chance of showers and thunderstorms. Seas around 3 ft.

      SSW 13kt
      3ft

    • Thursday Night

      Thursday Night:WSW wind 11 to 13 kt. A chance of thunderstorms before 8pm. Seas 3 to 4 ft.

      WSW 13kt
      3-4ft

    • Friday

      Friday:W wind around 9 kt. A chance of showers and thunderstorms after 2pm. Seas around 3 ft.

      W 9kt
      3ft

    • Friday Night

      Friday Night:WNW wind around 9 kt becoming N after midnight. A chance of showers and thunderstorms before 8pm. Seas 2 to 3 ft.

      N 9kt
      2-3ft

    • Saturday

      Saturday:NNE wind 7 to 9 kt becoming SE in the afternoon. Mostly sunny. Seas around 2 ft.

      NNE 9kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 6:03 am EDT Jul 15, 2025
Forecast Valid: 12pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025

View Nearby Observations

Detailed Forecast


This Afternoon
S wind around 7 kt. Mostly sunny. Seas around 2 ft.
Tonight
S wind 5 to 8 kt becoming SW after midnight. Patchy fog after 5am. Seas around 2 ft.
Wednesday
SW wind 5 to 10 kt becoming S in the morning. A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Seas around 2 ft.
Wednesday Night
SW wind 10 to 13 kt. A chance of showers and thunderstorms, mainly after 8pm. Seas 2 to 3 ft.
Thursday
SSW wind 10 to 13 kt. A chance of showers and thunderstorms. Seas around 3 ft.
Thursday Night
WSW wind 11 to 13 kt. A chance of thunderstorms before 8pm. Seas 3 to 4 ft.
Friday
W wind around 9 kt. A chance of showers and thunderstorms after 2pm. Seas around 3 ft.
Friday Night
WNW wind around 9 kt becoming N after midnight. A chance of showers and thunderstorms before 8pm. Seas 2 to 3 ft.
Saturday
NNE wind 7 to 9 kt becoming SE in the afternoon. Mostly sunny. Seas around 2 ft.

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: 40.53°N 73.44°W
Last Update: 6:03 am EDT Jul 15, 2025
Forecast Valid: 12pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025
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