Cornwall Weather Forecast

    • 19
    • 29

    Gradual Clearing

    • 22
    • 40

    Partly Sunny

    • 39
    • 41

    Rain

    • 20
    • 50

    Chance Rain

    • 26
    • 34

    Chance Snow

    • 22
    • 40

    Partly Sunny

Today 16 Dec Northern Litchfield

Mostly cloudy this Morning, then becoming mostly sunny. Cold with Highs in the upper 20s. Light and variable Winds, becoming southwest around 5 Mph this afternoon.

Tonight 16 Dec Northern Litchfield

Mostly cloudy in the Evening, then clearing. Cold with Lows around 19. Southwest Winds 5 to 10 Mph.

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Cornwall Temperature Statistics

December Temperature

Oxford, Waterbury-Oxford Airport (26.7 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    27.7 °F

  • Highest 10 December, 2025

    42.1 °F

Climate (2020–Present)

Oxford, Waterbury-Oxford Airport (26.7 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    59.5 °F
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