For More Weather Information:

12NM NNE Islip NY

[NOTICE]

Last Update: 3:16 pm EDT Jul 15, 2025
Forecast Valid: 4pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025

Late Afternoon

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 5pm. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Patchy fog between 1am and 3am, then Patchy fog after 5am. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Patchy fog before 8am. Seas 1 ft or less.

Wednesday Night

SSW wind 5 to 7 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday

SW wind 6 to 9 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Thursday Night

SW wind around 8 kt becoming W after midnight. Showers likely and possibly a thunderstorm before 8pm. Seas around 1 ft.

Friday

WNW wind around 7 kt. Mostly sunny. Seas around 1 ft.

Friday Night

N wind around 6 kt becoming NNE after midnight. Partly cloudy. Seas around 1 ft.

Saturday

NE wind around 6 kt becoming ESE in the afternoon. 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.