Heat and Severe Thunderstorms in the Eastern U.S.

A widespread heat wave will peak over the South and East today, with several dozen temperature records expected along the East Coast. Heat should begin to ease this weekend in the Northeast, while hazardous heat continues over the South. Severe thunderstorms capable of damaging winds are possible across parts of the Appalachians, Mid Atlantic, and Northeast this afternoon and evening. Read More >

For More Weather Information:

New Orleans/Baton Rouge, LA Local Forecast Office

11NM N Grand Isle LA

Marine Point Forecast

[NOTICE]

Tonight
Low: 80 °F
Light Wind
< 1ft
Saturday
High: 89 °F
⇑S 10kt
< 1ft
Saturday Night
Low: 80 °F
SSW 10kt
< 1ft
Sunday
High: 89 °F
S 10kt
< 1ft
Sunday Night
Low: 80 °F
SSW 10kt
< 1ft
Monday
High: 88 °F
SSW 10kt
< 1ft
Monday Night
Low: 81 °F
SSW 10kt
< 1ft
Tuesday
High: 84 °F
SW 10kt
< 1ft
Tuesday Night
Low: 80 °F
SSW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:56 pm CDT Jun 12, 2026
Forecast Valid: 5pm CDT Jun 12, 2026-6pm CDT Jun 19, 2026

View Nearby Observations

Detailed Forecast

Tonight

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

Saturday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Saturday Night

SSW wind 5 to 10 kt. Partly cloudy. Seas 1 ft or less.

Sunday

WSW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

SSW wind around 10 kt. A slight chance of showers and thunderstorms after 4am. Seas 1 ft or less.

Monday

SSW wind 5 to 10 kt. A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Seas 1 ft or less.

Monday Night

SSW wind around 10 kt. A chance of showers and thunderstorms, mainly after 1am. Seas 1 ft or less.

Tuesday

SW wind 5 to 10 kt. Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Seas 1 ft or less.

Tuesday Night

SSW wind 5 to 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Seas 1 ft or less.

Winds and seas higher in and near thunderstorms.

*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.