Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Today
SSW 10kt
1ft
Tonight
SSW 10kt
1ft
Friday
W 6kt
1ft
Friday Night
Light Wind
< 1ft
Saturday
NNE 7kt⇓
< 1ft
Saturday Night
⇑NE 6kt
< 1ft
Sunday
NNE 7kt⇓
< 1ft
Sunday Night
SE 6kt⇓
< 1ft
Monday
⇑SE 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 9:45 am EDT Jul 9, 2026
Forecast Valid: 10am EDT Jul 9, 2026-6pm EDT Jul 15, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 7 to 10 kt. A chance of showers and thunderstorms after 2pm. Seas around 1 ft.

Tonight

SSW wind 6 to 10 kt. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Patchy fog after 5am. Seas around 1 ft.

Friday

W wind around 6 kt. A chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Seas 1 ft or less.

Saturday

NNE wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas 1 ft or less.

Saturday Night

Variable winds less than 5 kt becoming NE around 6 kt after midnight. Partly cloudy. Seas 1 ft or less.

Sunday

NNE wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

SE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SE 5 to 7 kt in the afternoon. Sunny. Seas 1 ft or less.

*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.