Haddam Weather Forecast

    • 22
    • 30

    Increasing Clouds

    • 24
    • 42

    Mostly Cloudy

    • 21
    • 40

    Chance Snow Showers

    • 11
    • 31

    Mostly Sunny

    • 25
    • 36

    Slight Chance Snow

    • 35
    • 47

    Rain Likely

Today 5 Dec Northern Middlesex

Sunny, cold with Highs in the upper 20s. Northeast Winds around 5 Mph, becoming south this afternoon.

Tonight 5 Dec Northern Middlesex

Mostly cloudy. A slight chance of light snow after midnight. Lows in the lower 20s. Light and variable Winds. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Haddam Temperature Statistics

December Temperature

Chester, Chester Airport (6.2 miles)

  • Lowest 2 December, 2025

    26.6 °F

  • Average December

    33.4 °F

  • Highest 1 December, 2025

    42.8 °F

Climate (2020–Present)

Chester, Chester Airport (6.2 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    62.6 °F
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