Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSW wind 5 to 9 kt. A chance of showers, with thunderstorms also possible after 5pm.   Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Tonight

      Tonight:WSW wind around 9 kt becoming NNW after midnight. A chance of showers and thunderstorms, mainly before 8pm.   Seas 1 ft or less.

      WNW 9kt
      < 1ft

    • Monday

      Monday:NNW wind around 9 kt. Sunny. Seas 1 ft or less.

      NNW 9kt
      < 1ft

    • Monday Night

      Monday Night:NNE wind around 10 kt. Mostly clear. Seas 1 ft or less.

      NNE 10kt
      < 1ft

    • Tuesday

      Tuesday:NE wind 5 to 9 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

      NE 9kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

      SSE 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑S 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 9 to 12 kt becoming SW after midnight. Partly cloudy. Seas 1 ft or less.

      S 12kt
      < 1ft

    • Thursday

      Thursday:SW wind 9 to 14 kt becoming S in the afternoon. Sunny. Seas 1 ft or less.

      S 14kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 3:53 am EDT Jul 20, 2025
Forecast Valid: 9am EDT Jul 20, 2025-6pm EDT Jul 26, 2025

View Nearby Observations

Detailed Forecast


Today
SSW wind 5 to 9 kt. A chance of showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.
Tonight
WSW wind around 9 kt becoming NNW after midnight. A chance of showers and thunderstorms, mainly before 8pm. Seas 1 ft or less.
Monday
NNW wind around 9 kt. Sunny. Seas 1 ft or less.
Monday Night
NNE wind around 10 kt. Mostly clear. Seas 1 ft or less.
Tuesday
NE wind 5 to 9 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.
Wednesday Night
S wind 9 to 12 kt becoming SW after midnight. Partly cloudy. Seas 1 ft or less.
Thursday
SW wind 9 to 14 kt becoming S in the afternoon. 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: 40.61°N 73.51°W
Last Update: 3:53 am EDT Jul 20, 2025
Forecast Valid: 9am EDT Jul 20, 2025-6pm EDT Jul 26, 2025
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