Cold Spring Harbor Weather Forecast

    • 74
    • 86

    Chance Thunderstorms

    • 74
    • 85

    Chance Thunderstorms

    • 73
    • 86

    Mostly Sunny

    • 75
    • 85

    Slight Chance Thunderstorms

    • 72
    • 90

    Chance Thunderstorms

    • 71
    • 85

    Chance Rain Showers

Today 7 Aug Northern Nassau

Partly sunny. Patchy fog this morning. A chance of Thunderstorms with a slight chance of Showers this afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Highs in the lower 90s. West Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 101.

Tonight 7 Aug Northern Nassau

Mostly cloudy. A chance of Showers and Thunderstorms. Patchy fog after midnight. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Humid with Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Cold Spring Harbor Temperature Statistics

August Temperature

Farmingdale - Republic Airport (10.6 miles)

  • Lowest 4 August, 2026

    64.9 °F

  • Average August

    76.2 °F

  • Highest 1 August, 2026

    82.9 °F

Climate (2021–2026)

Farmingdale - Republic Airport (10.6 miles)

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  • Average Low 2021–2026

    48.2 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    63.1 °F
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