Alder Island Weather Forecast

    • 66
    • 82

    Mostly Sunny

    • 69
    • 77

    Mostly Sunny

    • 71
    • 77

    Rain Showers

    • 67
    • 78

    Rain Showers Likely

    • 68
    • 76

    Partly Sunny

    • 69
    • 76

    Partly Sunny

Today 19 Jul Southern Nassau

Sunny. Highs in the lower 80s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 19 Jul Southern Nassau

Mostly clear. Lows in the mid 60s. North 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 7 July, 2026

    64.7 °F

  • Average July

    79.2 °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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