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New York, NY Local Forecast Office

7NM S Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:S wind around 9 kt. Mostly sunny. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Tonight

      Tonight:SW wind around 12 kt. Partly cloudy. Seas 1 ft or less.

      SW 12kt
      < 1ft

    • Sunday

      Sunday:SSW wind 9 to 13 kt. Mostly sunny. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 13 to 16 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 22 kt. Patchy fog after 2am. Seas 1 ft or less.

      SSW 16kt⇓
      < 1ft

    • Monday

      Monday:S wind 8 to 12 kt. A slight chance of showers and thunderstorms after 11am. Patchy fog before 9am. Seas 1 ft or less.

      S 12kt
      < 1ft

    • Monday Night

      Monday Night:S wind 9 to 13 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      S 13kt
      < 1ft

    • Tuesday

      Tuesday:SW wind 8 to 10 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas around 2 ft.

      SW 10kt
      2ft

    • Tuesday Night

      Tuesday Night:SW wind 6 to 9 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas around 2 ft.

      SW 9kt
      2ft

    • Wednesday

      Wednesday:NW wind around 6 kt becoming S in the afternoon. Partly sunny. Seas around 2 ft.

      SSW 6kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 1:44 pm EDT Jul 5, 2025
Forecast Valid: 3pm EDT Jul 5, 2025-6pm EDT Jul 12, 2025

View Nearby Observations

Detailed Forecast


This Afternoon
S wind around 9 kt. Mostly sunny. Seas 1 ft or less.
Tonight
SW wind around 12 kt. Partly cloudy. Seas 1 ft or less.
Sunday
SSW wind 9 to 13 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
SSW wind 13 to 16 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 22 kt. Patchy fog after 2am. Seas 1 ft or less.
Monday
S wind 8 to 12 kt. A slight chance of showers and thunderstorms after 11am. Patchy fog before 9am. Seas 1 ft or less.
Monday Night
S wind 9 to 13 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Tuesday
SW wind 8 to 10 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas around 2 ft.
Tuesday Night
SW wind 6 to 9 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas around 2 ft.
Wednesday
NW wind around 6 kt becoming S in the afternoon. Partly 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: 40.62°N 73.24°W
Last Update: 1:44 pm EDT Jul 5, 2025
Forecast Valid: 3pm EDT Jul 5, 2025-6pm EDT Jul 12, 2025
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