Northwest Harwinton Weather Forecast

    • 19
    • 29

    Increasing Clouds

    • 22
    • 40

    Partly Sunny

    • 39
    • 41

    Mostly Cloudy

    • 20
    • 50

    Slight Chance Rain/Snow

    • 26
    • 33

    Mostly Cloudy

    • 22
    • 40

    Slight Chance Snow

Today 16 Dec Southern Litchfield

Mostly cloudy this Morning, then clearing. Cold with Highs in the lower 30s. Southwest Winds around 5 Mph.

Tonight 16 Dec Southern Litchfield

Mostly cloudy in the Evening, then clearing. Cold with Lows in the lower 20s. Southwest Winds around 5 Mph.

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Northwest Harwinton Temperature Statistics

December Temperature

Oxford, Waterbury-Oxford Airport (19.9 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 (19.9 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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