Lake Quassapaug Weather Forecast

    • 68
    • 82

    Chance Thunderstorms

    • 62
    • 86

    Rain Showers Likely

    • 56
    • 77

    Mostly Sunny

    • 59
    • 78

    Partly Sunny

    • 66
    • 84

    Slight Chance Rain Showers

    • 71
    • 87

    Chance Rain Showers

Today 19 Jul Northern New Haven

Sunny. Highs in the mid 80s. East Winds around 5 Mph, becoming south this afternoon.

Tonight 19 Jul Northern New Haven

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Quassapaug Temperature Statistics

July Temperature

Oxford, Waterbury-Oxford Airport (3.1 miles)

  • Lowest 5 July, 2025

    54 °F

  • Average July

    74.1 °F

  • Highest 1 July, 2025

    89.1 °F

Climate (2020–Present)

Oxford, Waterbury-Oxford Airport (3.1 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59.7 °F
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