Spring Severe Thunderstorms, Excessive Rainfall, and Heavy Snow Today

Scattered severe thunderstorms are expected this afternoon and evening from eastern Texas into the lower Mississippi and Tennessee Valleys/southern Appalachians. Heavy to excessive rainfall may produce flash flooding from the lower Mississippi River Valley into the southern Appalachians today. A late-season snowstorm will continue heavy snow over parts of the central Rockies through today. Read More >

For More Weather Information:

New Orleans/Baton Rouge, LA Local Forecast Office

17NM E Grand Isle LA

Marine Point Forecast

[NOTICE]

This Afternoon
High: 83 °F
S 10kt
1ft
Tonight
Low: 73 °F
SSW 10kt
1ft
Thursday
High: 82 °F
SW 10kt
1ft
Thursday Night
Low: 70 °F
Light Wind
1ft
Friday
High: 81 °F
ESE 10kt
< 1ft
Friday Night
Low: 72 °F
Light Wind
1ft
Saturday
High: 82 °F
Light Wind
< 1ft
Saturday Night
Low: 72 °F
Light Wind
1ft
Sunday
High: 83 °F
S 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:27 pm CDT May 6, 2026
Forecast Valid: 2pm CDT May 6, 2026-6pm CDT May 12, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 10 kt. Mostly sunny. Seas around 1 ft.

Tonight

SSW wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Thursday

SW wind 5 to 10 kt becoming W in the afternoon. A chance of showers and thunderstorms, mainly after noon. Seas around 1 ft.

Thursday Night

Variable winds 5 kt or less. A slight chance of thunderstorms before 7pm. Seas around 1 ft.

Friday

ESE wind around 10 kt. A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Seas 1 ft or less.

Friday Night

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

Saturday

Variable winds 5 kt or less. Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 1am. Seas around 1 ft.

Sunday

S wind 5 to 10 kt. A chance of showers and thunderstorms. 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.