Ashburnham Weather Forecast

    • 53
    • 71

    Chance Thunderstorms

    • 55
    • 77

    Becoming Sunny

    • 42
    • 72

    Mostly Sunny

    • 41
    • 66

    Sunny

    • 47
    • 68

    Partly Sunny

    • 54
    • 73

    Mostly Sunny

    • 57
    • 78

    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 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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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ashburnham Temperature Statistics

September Temperature

Fitchburg, Fitchburg Municipal Airport (9.3 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 (9.3 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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