Northwest Harwinton Weather Forecast

    • 62
    • 80

    Partly Sunny

    • 69
    • 87

    Mostly Sunny

    • 69
    • 93

    Slight Chance Thunderstorms

    • 66
    • 85

    Chance Rain Showers

    • 65
    • 81

    Chance Rain Showers

    • 65
    • 84

    Slight Chance Thunderstorms

Today 23 Jul Southern Litchfield

Patchy fog in the morning. Mostly sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 23 Jul Southern Litchfield

Mostly clear. Lows in the mid 50s. Light and variable Winds.

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Northwest Harwinton Temperature Statistics

July Temperature

Oxford, Waterbury-Oxford Airport (19.9 miles)

  • Lowest 5 July, 2025

    54 °F

  • Average July

    74.1 °F

  • Highest 1 July, 2025

    89.1 °F

Climate (2020–Present)

Oxford, Waterbury-Oxford Airport (19.9 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59.6 °F
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