Grand Isle (Outside) Weather Forecast
- 72
- 75
Increasing Clouds
- 73
- 77
Breezy
- 73
- 77
Breezy
- 74
- 77
Partly Sunny
- 72
- 78
Partly Sunny
- 72
- 77
Slight Chance Thunderstorms
Today 25 Apr Coastal Jefferson
Sunny. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.
Tonight 25 Apr Coastal Jefferson
Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.
Grand Isle (Outside) Temperature Statistics
April Temperature
Port Fourchon (18 miles)
Lowest
–Average April
–Highest
–
Climate (2019–Present)
Port Fourchon (18 miles)
Average Low 2019–2020
71.4 °FAverage 2019–2020
75.5 °FAverage High 2019–2020
79.4 °F