Harwinton Weather Forecast

    • 38
    • 58

    Decreasing Clouds

    • 42
    • 60

    Partly Sunny

    • 47
    • 59

    Rain Showers

    • 47
    • 62

    Rain Showers

    • 47
    • 61

    Chance Rain Showers

    • 53
    • 72

    Partly Sunny

    • 53
    • 77

    Partly Sunny

Today 11 May Southern Litchfield

Mostly cloudy. Near steady temperature in the lower 60s. Northwest Winds around 5 Mph.

Tonight 11 May Southern Litchfield

Mostly cloudy this Evening, then becoming partly cloudy. Cooler with Lows in the upper 30s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harwinton Temperature Statistics

May Temperature

Oxford, Waterbury-Oxford Airport (19.9 miles)

  • Lowest 1 May, 2026

    39 °F

  • Average May

    53.1 °F

  • Highest 5 May, 2026

    75 °F

Climate (2021–Present)

Oxford, Waterbury-Oxford Airport (19.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.4 °F
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