Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

For More Weather Information:

New Orleans/Baton Rouge, LA Local Forecast Office

3NM SW Grand Isle LA

Marine Point Forecast

[NOTICE]

Sunday
High: 88 °F
Light Wind
< 1ft
Sunday Night
Low: 83 °F
Light Wind
< 1ft
Monday
High: 89 °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
Light Wind
< 1ft
Wednesday Night
Low: 80 °F
Light Wind
< 1ft
Thursday
High: 88 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:01 am CDT Jul 13, 2025
Forecast Valid: 2am CDT Jul 13, 2025-6pm CDT Jul 19, 2025

View Nearby Observations

Detailed Forecast

Sunday

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

Sunday Night

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

Monday

Variable winds 5 kt or less. A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 10am, then showers and thunderstorms likely after 10am. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. 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

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

Wednesday Night

Variable winds 5 kt or less. Showers and thunderstorms likely, mainly 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.