Last Update: 535 AM CDT Mon May 25 2026
For More Weather Information:
20NM SSE Grand Isle LA
Marine Zone Forecast
Today
East winds 10 to 15 knots, becoming south 5 to 10 knots late this morning and afternoon. Seas around 2 feet. Wave detail: south 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly this morning.
Tonight
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 5 seconds. A chance of showers and thunderstorms.
Tuesday
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon.
Tuesday Night
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds. A slight chance of showers and thunderstorms.
Wednesday
Southeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 7 seconds. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon.
Wednesday Night
Southeast winds around 10 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 6 seconds. A chance of showers and thunderstorms.
Thursday
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 6 seconds. A chance of thunderstorms. Showers likely.
Thursday Night
South winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: south 2 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight.
Friday
South winds 5 to 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 6 seconds. A chance of thunderstorms. Showers likely.
Friday Night
South winds 5 to 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 6 seconds. A chance of showers and thunderstorms.
winds and seas higher in and near thunderstorms.
winds and seas higher in and near thunderstorms.
Winds and seas higher in and near thunderstorms.
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