National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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New York, NY Local Forecast Office

11NM ESE Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds less than 5 kt becoming S around 6 kt in the afternoon. A chance of showers and thunderstorms, mainly before 11am. Patchy fog before 11am. Seas 1 ft or less.

      ⇑S 6kt
      < 1ft

    • Tonight

      Tonight:SSW wind around 6 kt becoming variable and less than 5 kt after midnight. Patchy fog after 11pm. Seas 1 ft or less.

      SSW 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSW 5 to 9 kt in the morning. A slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Seas 1 ft or less.

      ⇑SSW 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind around 10 kt. A chance of showers and thunderstorms, mainly after 8pm. Seas 1 ft or less.

      SW 10kt
      < 1ft

    • Thursday

      Thursday:SSW wind 8 to 13 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Thursday Night

      Thursday Night:WSW wind 9 to 11 kt. A chance of thunderstorms before 8pm. Seas 1 ft or less.

      WSW 11kt
      < 1ft

    • Friday

      Friday:W wind around 9 kt. Mostly sunny. Seas 1 ft or less.

      W 9kt
      < 1ft

    • Friday Night

      Friday Night:WNW wind 5 to 7 kt becoming N after midnight. Mostly cloudy. Seas 1 ft or less.

      N 7kt
      < 1ft

    • Saturday

      Saturday:NNE wind around 8 kt becoming SE in the afternoon. Mostly sunny. Seas 1 ft or less.

      NNE 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:03 am EDT Jul 15, 2025
Forecast Valid: 8am EDT Jul 15, 2025-6pm EDT Jul 21, 2025

View Nearby Observations

Detailed Forecast


Today
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. A chance of showers and thunderstorms, mainly before 11am. Patchy fog before 11am. Seas 1 ft or less.
Tonight
SSW wind around 6 kt becoming variable and less than 5 kt after midnight. Patchy fog after 11pm. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSW 5 to 9 kt in the morning. A slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Seas 1 ft or less.
Wednesday Night
SW wind around 10 kt. A chance of showers and thunderstorms, mainly after 8pm. Seas 1 ft or less.
Thursday
SSW wind 8 to 13 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Thursday Night
WSW wind 9 to 11 kt. A chance of thunderstorms before 8pm. Seas 1 ft or less.
Friday
W wind around 9 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
WNW wind 5 to 7 kt becoming N after midnight. Mostly cloudy. Seas 1 ft or less.
Saturday
NNE wind around 8 kt becoming SE in the afternoon. Mostly sunny. Seas 1 ft or less.

Winds and waves 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: 40.7°N 72.99°W
Last Update: 6:03 am EDT Jul 15, 2025
Forecast Valid: 8am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
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