Winchendon Weather Forecast

    • 53
    • 73

    Chance Rain Showers

    • 53
    • 79

    Mostly Sunny

    • 41
    • 73

    Mostly Sunny

    • 39
    • 67

    Mostly Sunny

    • 46
    • 70

    Partly Sunny

    • 52
    • 74

    Partly Sunny

    • 56
    • 79

    Partly Sunny

Today 17 Sep Northern Worcester

Partly sunny. Near steady temperature around 70. East Winds around 5 Mph.

Tonight 17 Sep Northern Worcester

Mostly cloudy. A slight chance of Showers this Evening, then a chance of Showers and Thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. East Winds around 5 Mph, becoming northeast after midnight. Chance of rain 50 percent.

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Winchendon Temperature Statistics

September Temperature

Jaffrey Airport-Silver Ranch (8.1 miles)

  • Lowest 9 September, 2025

    39.9 °F

  • Average September

    61 °F

  • Highest 6 September, 2025

    79 °F

Climate (2020–Present)

Jaffrey Airport-Silver Ranch (8.1 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    58.3 °F
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