Dangerous Heat to Continue through the Holiday Weekend; Severe Storms on Friday from the Plains to the Mid-Atlantic

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing across the eastern U.S. through the Independence Day holiday weekend. Peak heat indices of up to 115 degrees are possible. Isolated to scattered severe thunderstorms are possible from the northern/central Plains into the Midwest, Ohio Valley, and Mid-Atlantic Friday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Overnight
Light Wind
< 1ft
Friday
⇑WNW 6kt
< 1ft
Friday Night
SW 7kt⇓
< 1ft
Independence Day
W 8kt
< 1ft
Saturday Night
WNW 7kt
< 1ft
Sunday
Light Wind
< 1ft
Sunday Night
SSE 7kt⇓
< 1ft
Monday
E 10kt
< 1ft
Monday Night
E 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 7:49 pm EDT Jul 2, 2026
Forecast Valid: 11pm EDT Jul 2, 2026-6pm EDT Jul 9, 2026

View Nearby Observations

Detailed Forecast

Overnight

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

Friday

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

Friday Night

SW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Seas 1 ft or less.

Independence Day

W wind 5 to 8 kt. Showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Saturday Night

WNW wind 5 to 7 kt becoming N after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. A chance of showers after 2pm. Seas 1 ft or less.

Sunday Night

SSE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly after 2am. Seas 1 ft or less.

Monday

E wind 7 to 10 kt. Showers likely. Seas 1 ft or less.

Monday Night

E wind 8 to 11 kt. Showers likely. 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.