Harwinton Weather Forecast

    • 22
    • 36

    Gradual Clearing

    • 18
    • 35

    Mostly Cloudy

    • 8
    • 23

    Partly Sunny

    • 22
    • 28

    Mostly Cloudy

    • 30
    • 38

    Rain/Snow Likely

    • 22
    • 37

    Chance Rain/Snow

Today 6 Dec Southern Litchfield

Mostly cloudy. A chance of light snow in the morning. Not as cool with Highs around 40. Southwest Winds around 5 Mph. Chance of snow 30 percent.

Tonight 6 Dec Southern Litchfield

Cloudy with a 30 percent chance of light snow. Not as cold. Near steady temperature in the lower 20s. Light and variable Winds.

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Harwinton Temperature Statistics

December Temperature

Oxford, Waterbury-Oxford Airport (19.9 miles)

  • Lowest 1 December, 2025

    24.1 °F

  • Average December

    31.4 °F

  • Highest 1 December, 2025

    37.9 °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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