Harmonyville Weather Forecast

    • 20
    • 40

    Decreasing Clouds

    • 36
    • 40

    Rain

    • 20
    • 52

    Rain

    • 27
    • 33

    Chance Snow

    • 18
    • 38

    Partly Sunny

    • 13
    • 27

    Partly Sunny

Today 17 Dec Western Windham

Partly sunny. Not as cool with Highs in the upper 30s. Southwest Winds around 5 Mph with Gusts up to 20 Mph.

Tonight 17 Dec Western Windham

Partly cloudy. Cold with Lows around 18. West Winds around 5 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.

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Harmonyville Temperature Statistics

December Temperature

Keene, Dillant-Hopkins Airport (21.7 miles)

  • Lowest 9 December, 2025

    -9 °F

  • Average December

    22.4 °F

  • Highest 1 December, 2025

    37.9 °F

Climate (2020–Present)

Keene, Dillant-Hopkins Airport (21.7 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    58.8 °F
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