Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

For More Weather Information:

New Orleans/Baton Rouge, LA Local Forecast Office

3NM SW Grand Isle LA

Marine Point Forecast

[NOTICE]

This Afternoon
High: 88 °F
Light Wind
< 1ft
Tonight
Low: 85 °F
Light Wind
< 1ft
Monday
High: 88 °F
Light Wind
< 1ft
Monday Night
Low: 81 °F
Light Wind
< 1ft
Tuesday
High: 90 °F
Light Wind
< 1ft
Tuesday Night
Low: 81 °F
Light Wind
< 1ft
Wednesday
High: 90 °F
NNW 10kt
< 1ft
Wednesday Night
Low: 79 °F
Light Wind
< 1ft
Thursday
High: 87 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:11 pm CDT Jul 13, 2025
Forecast Valid: 2pm CDT Jul 13, 2025-6pm CDT Jul 19, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Showers and thunderstorms likely, mainly after 4pm. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. Showers and thunderstorms likely, mainly before noon. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Seas 1 ft or less.

Tuesday

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

Tuesday Night

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

Wednesday

NNW wind 5 to 10 kt becoming SE in the afternoon. Showers and thunderstorms likely, mainly before 1pm. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. Showers and possibly a thunderstorm. 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.