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

24NM WSW Grand Isle LA

Marine Point Forecast

[NOTICE]

Monday
High: 87 °F
Light Wind
< 1ft
Monday Night
Low: 86 °F
Light Wind
< 1ft
Tuesday
High: 87 °F
Light Wind
< 1ft
Tuesday Night
Low: 83 °F
NW 10kt
< 1ft
Wednesday
High: 88 °F
NNW 10kt
< 1ft
Wednesday Night
Low: 81 °F
NNW 10kt
< 1ft
Thursday
High: 85 °F
W 10kt
< 1ft
Thursday Night
Low: 82 °F
S 15kt
< 1ft
Friday
High: 86 °F
SSW 15kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:51 am CDT Jul 14, 2025
Forecast Valid: 2am CDT Jul 14, 2025-6pm CDT Jul 20, 2025

View Nearby Observations

Detailed Forecast

Monday

Variable winds 5 kt or less. A chance of showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 11am, then a chance of showers and thunderstorms after 11am. Seas 1 ft or less.

Monday Night

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

Tuesday

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 7am. Seas 1 ft or less.

Tuesday Night

WSW wind 5 to 10 kt becoming NW after midnight. A slight chance of showers and thunderstorms after 1am. Seas 1 ft or less.

Wednesday

NNW wind 5 to 10 kt becoming SSW in the afternoon. Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely after 10am. Seas 1 ft or less.

Wednesday Night

WSW wind around 10 kt becoming NNW after midnight. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Seas 1 ft or less.

Thursday

N wind around 10 kt becoming WSW in the afternoon. Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. Seas 1 ft or less.

Thursday Night

W wind 10 to 15 kt becoming S in the evening. Showers and possibly a thunderstorm. Seas 1 ft or less.

Friday

SSW wind around 15 kt. 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.