Ashburnham Weather Forecast

    • 16
    • 36

    Increasing Clouds

    • 19
    • 29

    Partly Sunny

    • 25
    • 34

    Snow Likely

    • 20
    • 33

    Mostly Cloudy

    • 22
    • 34

    Mostly Cloudy

    • 17
    • 35

    Chance Wintry Mix

Today 21 Dec Northern Worcester

Sunny. Highs in the upper 30s. Temperature falling to around 30 this afternoon. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 21 Dec Northern Worcester

Partly cloudy. Cooler with Lows around 18. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ashburnham Temperature Statistics

December Temperature

Fitchburg, Fitchburg Municipal Airport (9.3 miles)

  • Lowest 9 December, 2025

    1.9 °F

  • Average December

    26.9 °F

  • Highest 17 December, 2025

    45 °F

Climate (2020–Present)

Fitchburg, Fitchburg Municipal Airport (9.3 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    61.7 °F
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