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12NM NW Islip NY

[NOTICE]

Last Update: 3:21 am EDT Aug 23, 2026
Forecast Valid: 5am EDT Aug 23, 2026-6pm EDT Aug 29, 2026

Today

E wind around 7 kt becoming SSW in the afternoon. Showers and thunderstorms likely, mainly before 11am. Patchy fog before 9am. Seas 1 ft or less.

Tonight

SW wind 6 to 8 kt becoming W after midnight. Mostly clear. Seas 1 ft or less.

Monday

WSW wind 5 to 10 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

W wind around 8 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Tuesday

W wind around 9 kt. Sunny. Seas 1 ft or less.

Tuesday Night

W wind around 6 kt. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Wednesday Night

S wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. A chance of showers. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*Notices:

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.
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.