Acton Weather Forecast

    • 50
    • 75

    Partly Sunny

    • 55
    • 74

    Chance Rain Showers

    • 58
    • 79

    Slight Chance Rain Showers

    • 47
    • 79

    Mostly Sunny

    • 45
    • 69

    Mostly Sunny

    • 49
    • 74

    Partly Sunny

Today 16 Sep Central Middlesex County

Partly sunny. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 16 Sep Central Middlesex County

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Acton Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (6.8 miles)

  • Lowest 9 September, 2025

    43 °F

  • Average September

    63.3 °F

  • Highest 6 September, 2025

    86 °F

Climate (2020–Present)

Laurence G Hanscom Field Airport (6.8 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    62 °F
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