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Destrehan, LA Marine Weather Forecast

Overnight - 79°F
Aug 18, 2026
5 mph SW
Mostly Clear
Mostly clear, with a low around 79. Southwest wind around 5 mph.
Tuesday - 97°F
Aug 18, 2026
5 mph W
Mostly Sunny
Mostly sunny, with a high near 97. Heat index values as high as 113. West wind around 5 mph.
Tuesday Night - 79°F
Aug 18, 2026
5 mph SW
Partly Cloudy
Partly cloudy. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 110. Southwest wind around 5 mph.
Wednesday - 97°F
Aug 19, 2026
5 mph W
Mostly Sunny
Mostly sunny, with a high near 97. Heat index values as high as 113. West wind around 5 mph.
Wednesday Night - 78°F
Aug 19, 2026
5 mph SW
Partly Cloudy
Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Thursday - 97°F
Aug 20, 2026
5 mph W
Sunny
Sunny, with a high near 97. West wind around 5 mph.
Thursday Night - 77°F
Aug 20, 2026
5 mph SW
Partly Cloudy
Partly cloudy, with a low around 77. Southwest wind around 5 mph.
Friday - 97°F
Aug 21, 2026
5 mph W
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. West wind around 5 mph.
Friday Night - 78°F
Aug 21, 2026
5 mph SW
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Saturday - 96°F
Aug 22, 2026
5 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 96. West wind around 5 mph.
Saturday Night - 77°F
Aug 22, 2026
5 mph W
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77. West wind around 5 mph.
Sunday - 97°F
Aug 23, 2026
5 mph NW
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Northwest wind around 5 mph.
Sunday Night - 77°F
Aug 23, 2026
5 mph SW
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 77. Southwest wind around 5 mph.
Monday - 97°F
Aug 24, 2026
5 mph NW
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Northwest wind around 5 mph.

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