Alder Island Weather Forecast

    • 48
    • 57

    Mostly Sunny

    • 53
    • 61

    Mostly Cloudy

    • 50
    • 65

    Breezy

    • 50
    • 60

    Slight Chance Rain Showers

    • 53
    • 63

    Partly Sunny

    • 51
    • 60

    Mostly Sunny

Today 18 Oct Southern Nassau

Sunny. Highs in the upper 50s. Northeast Winds 5 to 10 Mph.

Tonight 18 Oct Southern Nassau

Mostly clear. Lows in the mid 40s. Northeast Winds 5 to 10 Mph.

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Alder Island Temperature Statistics

October Temperature

New York, Kennedy International Airport (9.9 miles)

  • Lowest 7 October, 2026

    44.7 °F

  • Average October

    64 °F

  • Highest 2 October, 2026

    82.7 °F

Climate (2021–2026)

New York, Kennedy International Airport (9.9 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    63.6 °F
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