Alder Island Weather Forecast

    • 69
    • 74

    Rain Showers Likely

    • 71
    • 80

    Rain Showers Likely

    • 67
    • 81

    Partly Sunny

    • 64
    • 77

    Mostly Sunny

    • 64
    • 74

    Mostly Sunny

    • 67
    • 75

    Partly Sunny

Today 2 Sep Southern Nassau

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the mid 70s. East Winds 10 to 15 Mph.

Tonight 2 Sep Southern Nassau

Cloudy. A slight chance of Showers in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Humid with Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 70 percent.

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Alder Island Temperature Statistics

September Temperature

New York, Kennedy International Airport (9.9 miles)

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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

    56.3 °F

  • Average High 2021–2026

    63.6 °F
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