Lunenburg Weather Forecast

    • 51
    • 70

    Mostly Sunny

    • 59
    • 78

    Partly Sunny

    • 61
    • 78

    Chance Rain Showers

    • 48
    • 76

    Partly Sunny

    • 51
    • 68

    Chance Rain Showers

    • 53
    • 70

    Chance Rain Showers

Today 15 Sep Northern Worcester

Sunny. Highs in the upper 60s. Northeast Winds around 5 Mph, becoming southeast around 5 Mph this afternoon.

Tonight 15 Sep Northern Worcester

Partly cloudy. Lows in the lower 50s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lunenburg Temperature Statistics

September Temperature

Fitchburg, Fitchburg Municipal Airport (3.1 miles)

  • Lowest 12 September, 2026

    46 °F

  • Average September

    65.5 °F

  • Highest 10 September, 2026

    84.9 °F

Climate (2021–2026)

Fitchburg, Fitchburg Municipal Airport (3.1 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    61.5 °F
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