Great Peconic Bay Weather Forecast

    • 66
    • 69

    Chance Rain Showers

    • 68
    • 72

    Mostly Sunny

    • 62
    • 73

    Rain Showers Likely

    • 59
    • 66

    Chance Rain Showers

    • 58
    • 67

    Partly Sunny

    • 59
    • 65

    Partly Sunny

    • 59
    • 65

    Partly Sunny

Today 4 Sep Northeast Suffolk

Sunny. Near steady temperature in the mid 70s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 4 Sep Northeast Suffolk

Partly cloudy this Evening, then becoming mostly cloudy. A chance of Showers this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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Great Peconic Bay Temperature Statistics

September Temperature

The Gabreski Airport (8.1 miles)

  • Lowest 1 September, 2025

    50 °F

  • Average September

    64.8 °F

  • Highest 1 September, 2025

    75 °F

Climate (2020–Present)

The Gabreski Airport (8.1 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    62.2 °F
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