Grand Isle Weather Forecast

    • -6
    • 11

    Decreasing Clouds

    • 21
    • 26

    Snow Likely

    • 20
    • 41

    Chance Rain/Snow

    • 8
    • 25

    Slight Chance Snow

    • 19
    • 27

    Snow Likely

    • 24
    • 39

    Rain/Snow Likely

Today 1 Feb Grand Isle

Partly sunny. A slight chance of snow this morning. Highs around 11. North Winds 15 to 20 Mph. Chance of snow 20 percent.

Tonight 1 Feb Grand Isle

Mostly clear until Midnight, then becoming partly cloudy. Much Colder with Lows around 6 below. Northwest Winds around 10 Mph until Midnight, becoming light and variable.

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Grand Isle Temperature Statistics

February Temperature

Plattsburgh International Airport (9.3 miles)

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Climate (2020–Present)

Plattsburgh International Airport (9.3 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    56.1 °F
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