Harwinton Weather Forecast

    • 35
    • 47

    Increasing Clouds

    • 34
    • 54

    Rain

    • 26
    • 41

    Chance Snow

    • 30
    • 45

    Partly Sunny

    • 30
    • 49

    Mostly Cloudy

    • 35
    • 50

    Rain/Snow Likely

    • 22
    • 44

    Slight Chance Rain/Snow

Today 21 Mar Southern Litchfield

Mostly sunny. Near steady temperature in the upper 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 21 Mar Southern Litchfield

Mostly cloudy. Lows in the upper 30s. North Winds around 5 Mph, becoming east after midnight.

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Harwinton Temperature Statistics

March Temperature

Oxford, Waterbury-Oxford Airport (19.9 miles)

  • Lowest 2 March, 2026

    10.9 °F

  • Average March

    39.3 °F

  • Highest 10 March, 2026

    75 °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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