Grand Isle Weather Forecast

    • 42
    • 47

    Rain Showers Likely

    • 44
    • 57

    Chance Rain Showers

    • 38
    • 53

    Slight Chance Rain Showers

    • 36
    • 52

    Partly Sunny

    • 37
    • 52

    Partly Sunny

    • 39
    • 60

    Chance Rain Showers

    • 31
    • 49

    Chance Rain Showers

Today 18 Apr Grand Isle

Showers. Highs in the upper 40s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 18 Apr Grand Isle

Cloudy with a chance of Sprinkles. Near steady temperature in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 25 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

    43.7 °F

  • Highest 12 April, 2024

    72 °F

Climate (2019–Present)

Plattsburgh International Airport (9.3 miles)

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  • Average Low 2019–2024

    38.1 °F

  • Average 2019–2024

    47.3 °F

  • Average High 2019–2024

    55.8 °F
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