Ashby Weather Forecast

    • 23
    • 39

    Decreasing Clouds

    • 35
    • 45

    Mostly Cloudy

    • 21
    • 53

    Rain

    • 26
    • 34

    Slight Chance Snow

    • 20
    • 39

    Partly Sunny

    • 16
    • 29

    Partly Sunny

Today 17 Dec Northwest Middlesex County

Mostly sunny. Not as cool with Highs in the lower 40s. Southwest Winds 10 to 15 Mph with Gusts up to 35 Mph.

Tonight 17 Dec Northwest Middlesex County

Mostly clear. Lows in the mid 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Ashby Temperature Statistics

December Temperature

Fitchburg, Fitchburg Municipal Airport (9.3 miles)

  • Lowest 9 December, 2025

    1.9 °F

  • Average December

    26.4 °F

  • Highest 10 December, 2025

    42.1 °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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