Hammonasset Point Weather Forecast

    • 64
    • 75

    Chance Rain Showers

    • 57
    • 78

    Mostly Sunny

    • 55
    • 68

    Mostly Sunny

    • 58
    • 67

    Partly Sunny

    • 62
    • 72

    Partly Sunny

    • 64
    • 75

    Partly Sunny

Today 18 Sep Southern New Haven

Partly sunny. A chance of Showers in the morning. Patchy fog in the morning. Highs in the upper 70s. North Winds around 5 Mph, becoming southwest in the afternoon. Chance of rain 30 percent.

Tonight 18 Sep Southern New Haven

Mostly cloudy with a 40 percent chance of Showers. Patchy fog. Near steady temperature in the mid 60s. North Winds around 5 Mph.

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Hammonasset Point Temperature Statistics

September Temperature

Chester, Chester Airport (9.3 miles)

  • Lowest 8 September, 2025

    50 °F

  • Average September

    65.1 °F

  • Highest 5 September, 2025

    82.4 °F

Climate (2020–Present)

Chester, Chester Airport (9.3 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    62.6 °F
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