Ashby Weather Forecast

    • 57
    • 79

    Becoming Sunny

    • 44
    • 74

    Sunny

    • 42
    • 67

    Mostly Sunny

    • 47
    • 69

    Partly Sunny

    • 56
    • 74

    Partly Sunny

    • 58
    • 81

    Slight Chance Rain Showers

Today 18 Sep Northwest Middlesex County

Partly sunny this Morning, then clearing. Highs in the lower 80s. Light and variable Winds, becoming west around 5 Mph this afternoon.

Tonight 18 Sep Northwest Middlesex County

Clear. Lows in the upper 50s. West Winds around 5 Mph.

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Ashby Temperature Statistics

September Temperature

Fitchburg, Fitchburg Municipal Airport (9.3 miles)

  • Lowest 11 September, 2025

    44.1 °F

  • Average September

    63.8 °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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