Ashburnham Weather Forecast

    • 62
    • 81

    Becoming Sunny

    • 67
    • 89

    Slight Chance Thunderstorms

    • 47
    • 84

    Rain Showers Likely

    • 43
    • 63

    Partly Sunny

    • 44
    • 63

    Mostly Cloudy

    • 45
    • 62

    Chance Rain Showers

Today 18 May Northern Worcester

Mostly sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 18 May Northern Worcester

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ashburnham Temperature Statistics

May Temperature

Fitchburg, Fitchburg Municipal Airport (9.3 miles)

  • Lowest 3 May, 2026

    34 °F

  • Average May

    53 °F

  • Highest 5 May, 2026

    82.9 °F

Climate (2021–Present)

Fitchburg, Fitchburg Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    61.4 °F
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