Alder Island Weather Forecast

    • 41
    • 51

    Chance Rain Showers

    • 46
    • 56

    Chance Rain Showers

    • 48
    • 62

    Partly Sunny

    • 47
    • 54

    Chance Rain Showers

    • 47
    • 50

    Chance Rain Showers

    • 47
    • 52

    Chance Rain Showers

Today 21 Apr Southern Nassau

Sunny. Highs in the lower 50s. North Winds 5 to 10 Mph, becoming south in the afternoon.

Tonight 21 Apr Southern Nassau

Mostly cloudy. A slight chance of Showers after midnight. Lows in the lower 40s. South Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alder Island Temperature Statistics

April Temperature

New York, Kennedy International Airport (9.9 miles)

  • Lowest 8 April, 2026

    30.7 °F

  • Average April

    54.4 °F

  • Highest 14 April, 2026

    80.7 °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

    56.2 °F

  • Average High 2021–2026

    63.5 °F
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