Connecticut River - Haddam Island State Park Weather Forecast

    • 49
    • 70

    Increasing Clouds

    • 44
    • 65

    Mostly Cloudy

    • 46
    • 66

    Mostly Cloudy

    • 49
    • 56

    Rain Showers Likely

    • 56
    • 78

    Partly Sunny

    • 54
    • 77

    Chance Rain Showers

    • 56
    • 71

    Chance Rain Showers

Today 2 May Northern Middlesex

Mostly sunny. Patchy fog. Highs in the upper 60s. Southwest Winds 5 to 10 Mph.

Tonight 2 May Northern Middlesex

Partly cloudy. Lows in the upper 40s. Northwest Winds 5 to 10 Mph, becoming northeast after midnight.

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Connecticut River - Haddam Island State Park Temperature Statistics

May Temperature

Chester, Chester Airport (7.5 miles)

  • Lowest

  • Average May

  • Highest

Climate (2019–Present)

Chester, Chester Airport (7.5 miles)

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  • Average Low 2019–2024

    45.4 °F
  • Average 2019–2024

    53.7 °F
  • Average High 2019–2024

    62.5 °F
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