Northport Harbor Weather Forecast

    • 64
    • 77

    Chance Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 63
    • 76

    Mostly Sunny

    • 66
    • 79

    Partly Sunny

    • 71
    • 81

    Slight Chance Rain Showers

    • 63
    • 84

    Partly Sunny

    • 60
    • 74

    Mostly Sunny

Today 5 Sep Northwest Suffolk

Sunny. Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 5 Sep Northwest Suffolk

Mostly cloudy with a 50 percent chance of Showers. Lows around 60. Northeast Winds 5 to 10 Mph.

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Northport Harbor Temperature Statistics

September Temperature

Farmingdale - Republic Airport (11.8 miles)

  • Lowest 2 September, 2026

    64.9 °F

  • Average September

    72.6 °F

  • Highest 3 September, 2026

    87.1 °F

Climate (2021–2026)

Farmingdale - Republic Airport (11.8 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    63 °F
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