Roslyn Harbor Weather Forecast

    • 9
    • 20

    Decreasing Clouds

    • 9
    • 23

    Partly Sunny

    • 6
    • 21

    Mostly Sunny

    • 3
    • 19

    Partly Sunny

    • 15
    • 21

    Chance Snow

    • 17
    • 26

    Chance Snow

    • 17
    • 32

    Partly Sunny

Today 27 Jan Northern Nassau

Partly sunny with a chance of Flurries. Cold with Highs around 20. Southwest Winds 15 to 20 Mph.

Tonight 27 Jan Northern Nassau

Partly cloudy with a chance of Flurries in the Evening, then mostly clear after midnight. Lows around 10 above. West Winds 15 to 20 Mph. Wind chill Values as low as 4 below.

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  • Temperature Real-Time

Roslyn Harbor Temperature Statistics

January Temperature

Farmingdale - Republic Airport (12.4 miles)

  • Lowest 24 January, 2026

    10 °F

  • Average January

    32.5 °F

  • Highest 9 January, 2026

    52 °F

Climate (2021–Present)

Farmingdale - Republic Airport (12.4 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    63.2 °F
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