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Hazardous Weather Conditions

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New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds less than 5 kt becoming S 12 to 17 kt in the morning. Winds could gust as high as 23 kt. Partly sunny. Seas 1 ft or less.

      ⇑S 17kt
      < 1ft

    • Tonight

      Tonight:S wind 16 to 19 kt becoming SW 12 to 15 kt after midnight. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Seas 1 ft or less.

      S 19kt⇓
      < 1ft

    • Monday

      Monday:NNW wind 10 to 14 kt becoming WNW in the afternoon. Sunny. Seas 1 ft or less.

      NNW 14kt
      < 1ft

    • Monday Night

      Monday Night:NNW wind 7 to 10 kt. Mostly clear. Seas 1 ft or less.

      NNW 10kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSW 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSW 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. Partly cloudy. Seas 1 ft or less.

      S 12kt⇓
      < 1ft

    • Wednesday

      Wednesday:SSE wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. A chance of showers after 2pm. Seas 1 ft or less.

      ⇑SSE 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 5 to 7 kt. A chance of showers. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Thursday

      Thursday:SSW wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 28 kt. A chance of showers. Seas 1 ft or less.

      ⇑SSW 20kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:46 am EDT Jun 14, 2026
Forecast Valid: 6am EDT Jun 14, 2026-6pm EDT Jun 20, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH

Today
Variable winds less than 5 kt becoming S 12 to 17 kt in the morning. Winds could gust as high as 23 kt. Partly sunny. Seas 1 ft or less.
Tonight
S wind 16 to 19 kt becoming SW 12 to 15 kt after midnight. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Seas 1 ft or less.
Monday
NNW wind 10 to 14 kt becoming WNW in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
NNW wind 7 to 10 kt. Mostly clear. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSW 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
S wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. Partly cloudy. Seas 1 ft or less.
Wednesday
SSE wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. A chance of showers after 2pm. Seas 1 ft or less.
Wednesday Night
S wind 5 to 7 kt. A chance of showers. Seas 1 ft or less.
Thursday
SSW wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 28 kt. A chance of showers. Seas 1 ft 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: 40.62°N 73.59°W
Last Update: 2:46 am EDT Jun 14, 2026
Forecast Valid: 6am EDT Jun 14, 2026-6pm EDT Jun 20, 2026
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