Grand Isle (Outside) Weather Forecast
- 70
- 75
Mostly Sunny
- 71
- 75
Mostly Sunny
- 73
- 77
Mostly Cloudy
- 73
- 78
Breezy
- 73
- 78
Partly Sunny
- 73
- 78
Slight Chance Thunderstorms
Today 24 Apr Coastal Jefferson
Sunny. Highs in the upper 70s. East Winds around 5 Mph, becoming southeast this afternoon.
Tonight 24 Apr Coastal Jefferson
Mostly clear. Lows in the mid 60s. South Winds 5 to 10 Mph.
Grand Isle (Outside) Temperature Statistics
April Temperature
Port Fourchon (18 miles)
Lowest
–Average April
–Highest
–
Climate (2019–Present)
Port Fourchon (18 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2020
71.4 °FAverage 2019–2020
75.5 °FAverage High 2019–2020
79.4 °F