Harwinton Weather Forecast

    • 56
    • 73

    Mostly Sunny

    • 60
    • 77

    Partly Sunny

    • 62
    • 76

    Rain Showers Likely

    • 58
    • 79

    Chance Thunderstorms

    • 57
    • 77

    Partly Sunny

    • 61
    • 78

    Slight Chance Rain Showers

Today 25 Aug Southern Litchfield

Sunny. Highs in the upper 70s. West Winds 5 to 10 Mph.

Tonight 25 Aug Southern Litchfield

Clear. Near steady temperature in the upper 50s. Light and variable Winds.

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Harwinton Temperature Statistics

August Temperature

Oxford, Waterbury-Oxford Airport (19.9 miles)

  • Lowest 4 August, 2026

    59 °F

  • Average August

    71.7 °F

  • Highest 6 August, 2026

    88 °F

Climate (2021–2026)

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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