Connecticut River - Hadlyme Weather Forecast

    • 59
    • 72

    Mostly Cloudy

    • 64
    • 75

    Mostly Cloudy

    • 57
    • 81

    Chance Rain Showers

    • 48
    • 70

    Mostly Sunny

    • 50
    • 66

    Partly Sunny

    • 43
    • 68

    Mostly Sunny

    • 40
    • 58

    Sunny

Today 30 Sep Northern New London

Sunny. Highs in the upper 50s.

Tonight 30 Sep Northern New London

Mostly cloudy. Lows in the mid 50s. Southwest Winds around 5 Mph.

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Connecticut River - Hadlyme Temperature Statistics

September Temperature

Chester, Chester Airport (4.3 miles)

  • Lowest 24 September, 2026

    46.4 °F

  • Average September

    65.3 °F

  • Highest 10 September, 2026

    86 °F

Climate (2021–2026)

Chester, Chester Airport (4.3 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.6 °F
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