South Ashburnham Weather Forecast

    • 54
    • 78

    Becoming Sunny

    • 42
    • 73

    Mostly Sunny

    • 41
    • 67

    Sunny

    • 46
    • 70

    Partly Sunny

    • 53
    • 74

    Partly Sunny

    • 57
    • 79

    Partly Sunny

Today 18 Sep Northern Worcester

Partly sunny with a slight chance of Showers in the Morning, then sunny in the afternoon. Patchy fog in the morning. Highs in the upper 70s. North Winds around 5 Mph, becoming west in the afternoon. Chance of rain 20 percent.

Tonight 18 Sep Northern Worcester

Mostly clear. Lows in the mid 50s. West Winds around 5 Mph.

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South Ashburnham Temperature Statistics

September Temperature

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

  • Lowest 11 September, 2025

    44.1 °F

  • Average September

    64 °F

  • Highest 6 September, 2025

    84 °F

Climate (2020–Present)

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    61.8 °F
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