Alder Island Weather Forecast

    • 25
    • 34

    Snow Likely

    • 31
    • 41

    Rain/Snow

    • 28
    • 37

    Chance Snow

    • 33
    • 37

    Partly Sunny

    • 34
    • 43

    Partly Sunny

    • 24
    • 40

    Mostly Cloudy

    • 26
    • 31

    Chance Snow

Today 24 Feb Southern Nassau

Mostly sunny. Highs in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 24 Feb Southern Nassau

Partly cloudy this Evening, then mostly cloudy with snow likely after midnight. Snow accumulation around an inch. Lows around 20. Temperature rising into the lower 30s after midnight. West Winds 5 to 10 Mph, increasing to south 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of snow 70 percent.

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Alder Island Temperature Statistics

February Temperature

New York, Kennedy International Airport (9.9 miles)

  • Lowest 8 February, 2026

    3.7 °F

  • Average February

    29.8 °F

  • Highest 21 February, 2026

    48.7 °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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