Station GISL1 - 8761724 - Grand Isle, LA
December 5, 2025 1:00 pm CSTLocation: 29.265N 89.958W
Wind Direction: NNE (20°)
Wind Speed: 8.9 knots
Wind Gust: 12.1 knots
Atmospheric Pressure: 29.99 in (1015.6 mb)
Pressure Tendency: -0.12 in (-3.9 mb)
Air Temperature: 52.7°F (11.5°C)
Water Temperature: 62.4°F (16.9°C)
This Afternoon - 61°F
Dec 05, 2025
10 mph N
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 61, with temperatures falling to around 57 in the afternoon. North wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight - 56°F
Dec 05, 2025
5 to 10 mph NE
Rain Showers
Rain showers. Cloudy. Low around 56, with temperatures rising to around 58 overnight. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Saturday - 65°F
Dec 06, 2025
10 mph NE
Rain Showers
Rain showers before 5pm. Cloudy. High near 65, with temperatures falling to around 61 in the afternoon. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday Night - 60°F
Dec 06, 2025
5 to 10 mph E
Chance Rain Showers
A chance of rain showers before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. East wind 5 to 10 mph. Chance of precipitation is 40%.
Sunday - 69°F
Dec 07, 2025
5 mph NE
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 69. Northeast wind around 5 mph. Chance of precipitation is 40%.
Sunday Night - 53°F
Dec 07, 2025
5 to 20 mph N
Chance Rain Showers then Mostly Cloudy
A chance of rain showers before midnight. Mostly cloudy, with a low around 53. North wind 5 to 20 mph. Chance of precipitation is 30%.
Monday - 59°F
Dec 08, 2025
15 to 20 mph N
Mostly Sunny
Mostly sunny, with a high near 59. North wind 15 to 20 mph.
Monday Night - 52°F
Dec 08, 2025
10 to 15 mph NE
Partly Cloudy
Partly cloudy, with a low around 52. Northeast wind 10 to 15 mph.
Tuesday - 60°F
Dec 09, 2025
5 to 10 mph NE
Sunny
Sunny, with a high near 60. Northeast wind 5 to 10 mph.
Tuesday Night - 55°F
Dec 09, 2025
5 mph SE
Mostly Clear
Mostly clear, with a low around 55. Southeast wind around 5 mph.
Wednesday - 66°F
Dec 10, 2025
5 to 10 mph SW
Sunny
Sunny, with a high near 66. Southwest wind 5 to 10 mph.
Wednesday Night - 61°F
Dec 10, 2025
10 mph SW
Mostly Clear
Mostly clear, with a low around 61. Southwest wind around 10 mph.
Thursday - 68°F
Dec 11, 2025
10 mph SW
Sunny
Sunny, with a high near 68. Southwest wind around 10 mph.
Thursday Night - 60°F
Dec 11, 2025
10 mph S
Partly Cloudy
Partly cloudy, with a low around 60. South wind around 10 mph.