Acton Weather Forecast

    • 55
    • 70

    Rain Showers Likely

    • 53
    • 60

    Rain Showers

    • 55
    • 60

    Rain Showers

    • 55
    • 60

    Rain Showers Likely

    • 55
    • 66

    Partly Sunny

    • 56
    • 72

    Partly Sunny

Today 25 Sep Central Middlesex County

Partly sunny. Near steady temperature in the upper 60s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 25 Sep Central Middlesex County

Cloudy with a 50 percent chance of rain. Not as cool with Lows in the mid 50s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Acton Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (6.8 miles)

  • Lowest 15 September, 2026

    41 °F

  • Average September

    63.6 °F

  • Highest 4 September, 2026

    84 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (6.8 miles)

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  • Average Low 2021–2026

    41.1 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.7 °F
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