Winchendon Weather Forecast

    • 60
    • 75

    Rain Showers Likely

    • 43
    • 71

    Partly Sunny

    • 44
    • 65

    Partly Sunny

    • 45
    • 57

    Rain Showers

    • 43
    • 62

    Partly Sunny

    • 42
    • 60

    Partly Sunny

Today 17 Sep Northern Worcester

Partly Sunny, then mostly cloudy with a chance of Showers. Highs in the upper 70s. South Winds around 5 Mph. Chance of rain 50 percent.

Tonight 17 Sep Northern Worcester

Mostly cloudy. Showers likely with isolated Thunderstorms in the Evening, then a chance of Showers after midnight. Patchy fog. Humid with Lows in the lower 60s. Southwest Winds around 5 Mph, becoming west around 5 Mph after midnight. Chance of rain 70 percent.

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Winchendon Temperature Statistics

September Temperature

Jaffrey Airport-Silver Ranch (8.1 miles)

  • Lowest 15 September, 2026

    41 °F
  • Average September

    62.8 °F
  • Highest 10 September, 2026

    81 °F

Climate (2021–2026)

Jaffrey Airport-Silver Ranch (8.1 miles)

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  • Average Low 2021–2026

    38.3 °F
  • Average 2021–2026

    48.4 °F
  • Average High 2021–2026

    58.1 °F
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