Grand Isle Weather Forecast

    • 27
    • 49

    Rain Showers

    • 28
    • 46

    Mostly Sunny

    • 38
    • 58

    Mostly Sunny

    • 48
    • 61

    Mostly Cloudy

    • 52
    • 66

    Chance Rain Showers

    • 53
    • 68

    Chance Rain Showers

Today 24 Apr Grand Isle

Showers. Highs in the upper 40s. West Winds 10 to 15 Mph, becoming north 15 to 20 Mph this afternoon. Chance of rain near 100 percent.

Tonight 24 Apr Grand Isle

Clear. Lows in the upper 20s. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

April Temperature

Plattsburgh International Airport (9.3 miles)

  • Lowest 2 April, 2024

    28 °F

  • Average April

    44 °F

  • Highest 12 April, 2024

    72 °F

Climate (2019–Present)

Plattsburgh International Airport (9.3 miles)

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  • Average Low 2019–2024

    38 °F

  • Average 2019–2024

    47.3 °F

  • Average High 2019–2024

    55.7 °F
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