Alder Island Weather Forecast

    • 69
    • 76

    Mostly Sunny

    • 71
    • 78

    Chance Thunderstorms

    • 71
    • 83

    Rain Showers Likely

    • 69
    • 79

    Partly Sunny

    • 69
    • 78

    Partly Sunny

    • 70
    • 78

    Partly Sunny

Today 8 Jul Southern Nassau

Sunny. Highs around 80. North Winds 5 to 10 Mph, becoming south this afternoon.

Tonight 8 Jul Southern Nassau

Clear in the Evening, then becoming partly cloudy. Lows in the upper 60s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alder Island Temperature Statistics

July Temperature

New York, Kennedy International Airport (9.9 miles)

  • Lowest 5 July, 2026

    71.1 °F

  • Average July

    84.4 °F

  • Highest 2 July, 2026

    102.7 °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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