Allenholm Airport Weather Forecast

    • 47
    • 71

    Rain Showers

    • 45
    • 64

    Partly Sunny

    • 49
    • 71

    Rain Showers Likely

    • 48
    • 68

    Chance Rain Showers

    • 49
    • 69

    Chance Rain Showers

    • 51
    • 72

    Partly Sunny

Today 29 May Grand Isle

Partly sunny this Morning, then mostly cloudy with Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 60s. Light and variable Winds, becoming south 10 to 15 Mph with Gusts up to 30 Mph this afternoon. Chance of rain 90 percent.

Tonight 29 May Grand Isle

Showers likely with a slight chance of Thunderstorms until Midnight, then Showers after midnight. Breezy with Lows in the upper 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming north 20 to 25 Mph with Gusts up to 40 Mph after midnight. Chance of rain near 100 percent.

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Allenholm Airport Temperature Statistics

May Temperature

Plattsburgh International Airport (7.5 miles)

  • Lowest 9 May, 2026

    30 °F

  • Average May

    55.7 °F

  • Highest 19 May, 2026

    88 °F

Climate (2021–Present)

Plattsburgh International Airport (7.5 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    55.8 °F
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