Grand Isle (Outside) Weather Forecast

    • 47
    • 52

    Partly Sunny

    • 59
    • 63

    Mostly Cloudy

    • 62
    • 66

    Chance Thunderstorms

    • 53
    • 68

    Chance Thunderstorms

    • 56
    • 60

    Mostly Sunny

    • 63
    • 67

    Partly Sunny

    • 63
    • 68

    Partly Sunny

Today 15 Dec Coastal Jefferson

Sunny, cooler with Highs in the upper 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Coastal Jefferson

Mostly clear in the Evening, then becoming partly cloudy. Near steady temperature in the lower 40s. Temperature rising into the mid 40s after midnight. Northeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle (Outside) Temperature Statistics

December Temperature

Port Fourchon (18 miles)

  • Lowest

    –

  • Average December

    –

  • Highest

    –

Climate (–Present)

Port Fourchon (18 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low –

    71.6 °F

  • Average –

    72.5 °F

  • Average High –

    75.2 °F
Get WillyWeather+ to remove ads