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Shell Beach, LA - Lake Borgne Marine Weather Forecast

Station SHBL1 - 8761305 - Shell Beach, LA

August 18, 2026 6:00 am CDT
Location: 29.868N 89.673W
Wind Direction: W (270°)
Wind Speed: 8.0 knots
Wind Gust: 9.9 knots
Atmospheric Pressure: 30.03 in (1016.8 mb)
Pressure Tendency: -0.00 in (-0.0 mb)
Air Temperature: 83.3°F (28.5°C)


Today - 93°F
Aug 18, 2026
5 to 10 mph W
Mostly Sunny
Mostly sunny, with a high near 93. Heat index values as high as 107. West wind 5 to 10 mph.
Tonight - 81°F
Aug 18, 2026
5 to 10 mph W
Partly Cloudy
Partly cloudy. Low around 81, with temperatures rising to around 83 overnight. Heat index values as high as 108. West wind 5 to 10 mph.
Wednesday - 93°F
Aug 19, 2026
5 to 10 mph W
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 1pm and 2pm. Mostly sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 107. West wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday Night - 81°F
Aug 19, 2026
5 mph SW
Partly Cloudy
Partly cloudy, with a low around 81. Heat index values as high as 108. Southwest wind around 5 mph.
Thursday - 93°F
Aug 20, 2026
5 to 10 mph W
Mostly Sunny
Mostly sunny, with a high near 93. West wind 5 to 10 mph.
Thursday Night - 80°F
Aug 20, 2026
5 mph SW
Partly Cloudy
Partly cloudy, with a low around 80. Southwest wind around 5 mph.
Friday - 93°F
Aug 21, 2026
5 to 10 mph W
Mostly Sunny
Mostly sunny, with a high near 93. West wind 5 to 10 mph.
Friday Night - 81°F
Aug 21, 2026
5 to 10 mph W
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 81. West wind 5 to 10 mph.
Saturday - 92°F
Aug 22, 2026
5 to 10 mph W
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. West wind 5 to 10 mph.
Saturday Night - 81°F
Aug 22, 2026
5 mph W
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 81. West wind around 5 mph.
Sunday - 92°F
Aug 23, 2026
5 mph N
Sunny
Sunny, with a high near 92. North wind around 5 mph.
Sunday Night - 82°F
Aug 23, 2026
5 to 10 mph SW
Mostly Clear
Mostly clear, with a low around 82. Southwest wind 5 to 10 mph.
Monday - 92°F
Aug 24, 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 92. West wind around 5 mph.
Monday Night - 82°F
Aug 24, 2026
5 to 10 mph SW
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 82. Southwest wind 5 to 10 mph.

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