For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 3:10 pm EDT Aug 25, 2026
Forecast Valid: 5pm EDT Aug 25, 2026-6pm EDT Sep 1, 2026

Late Afternoon

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

Tonight

W wind around 6 kt becoming NW after midnight. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming WNW around 6 kt in the morning. Sunny. Seas 1 ft or less.

Wednesday Night

S wind around 7 kt. Partly cloudy. Seas 1 ft or less.

Thursday

S wind 8 to 13 kt, with gusts as high as 21 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday Night

S wind 8 to 11 kt decreasing to 5 to 8 kt after midnight. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after 8am. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Saturday

N wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. 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.