Cold Spring Harbor Weather Forecast

    • 54
    • 69

    Rain

    • 55
    • 74

    Mostly Sunny

    • 56
    • 74

    Partly Sunny

    • 56
    • 73

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 7 Sep Northwest Suffolk

Rain late this Morning, then Showers this afternoon. Highs in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 7 Sep Northwest Suffolk

Mostly cloudy with Showers likely in the Evening, then partly cloudy after midnight. Lows in the mid 50s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 60 percent.

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Cold Spring Harbor Temperature Statistics

September Temperature

Farmingdale - Republic Airport (9.9 miles)

  • Lowest 3 September, 2025

    57 °F

  • Average September

    68.1 °F

  • Highest 5 September, 2025

    80.1 °F

Climate (2020–Present)

Farmingdale - Republic Airport (9.9 miles)

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  • Average Low 2020–2025

    48.5 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    63.4 °F
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