Alder Island Weather Forecast

    • 61
    • 69

    Slight Chance Thunderstorms

    • 57
    • 68

    Partly Sunny

    • 57
    • 66

    Partly Sunny

    • 53
    • 65

    Slight Chance Rain Showers

    • 55
    • 64

    Partly Sunny

    • 54
    • 64

    Slight Chance Rain Showers

Today 27 May Southern Nassau

Mostly cloudy. Highs in the lower 80s. Southwest Winds 10 to 15 Mph.

Tonight 27 May Southern Nassau

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the lower 60s. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alder Island Temperature Statistics

May Temperature

New York, Kennedy International Airport (9.9 miles)

  • Lowest 3 May, 2026

    46.7 °F

  • Average May

    60.6 °F

  • Highest 20 May, 2026

    93.7 °F

Climate (2021–Present)

New York, Kennedy International Airport (9.9 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    56.1 °F

  • Average High 2021–2026

    63.5 °F
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