Roslyn Harbor Weather Forecast

    • 64
    • 89

    Increasing Clouds

    • 60
    • 79

    Partly Sunny

    • 62
    • 80

    Partly Sunny

    • 63
    • 80

    Chance Rain Showers

    • 69
    • 87

    Chance Rain Showers

    • 66
    • 86

    Chance Rain Showers

Today 14 Jun Northern Nassau

Sunny in the Morning, then becoming partly sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph, increasing to south 15 to 20 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 14 Jun Northern Nassau

Mostly cloudy. Showers with a slight chance of Thunderstorms, mainly in the evening. Lows in the mid 60s. South Winds 15 to 20 Mph, becoming southwest 10 to 15 Mph after midnight. Gusts up to 30 Mph. Chance of rain 90 percent.

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Roslyn Harbor Temperature Statistics

June Temperature

Farmingdale - Republic Airport (12.4 miles)

  • Lowest 2 June, 2026

    48.9 °F

  • Average June

    69.6 °F

  • Highest 11 June, 2026

    93 °F

Climate (2021–Present)

Farmingdale - Republic Airport (12.4 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    63 °F
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