Harwinton Weather Forecast

    • 24
    • 47

    Mostly Sunny

    • 36
    • 49

    Chance Rain/Snow

    • 38
    • 50

    Chance Rain Showers

    • 40
    • 63

    Partly Sunny

    • 39
    • 62

    Partly Sunny

    • 40
    • 55

    Chance Rain Showers

    • 41
    • 58

    Chance Rain Showers

Today 20 Apr Southern Litchfield

Partly sunny. Near steady temperature in the upper 40s. Northwest Winds around 10 Mph.

Tonight 20 Apr Southern Litchfield

Partly cloudy in the Evening, then becoming mostly clear. Cold with Lows in the mid 20s. Northwest Winds 5 to 10 Mph.

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Harwinton Temperature Statistics

April Temperature

Oxford, Waterbury-Oxford Airport (19.9 miles)

  • Lowest 8 April, 2026

    23 °F

  • Average April

    51.3 °F

  • Highest 16 April, 2026

    84 °F

Climate (2021–Present)

Oxford, Waterbury-Oxford Airport (19.9 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.4 °F
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