Acton Weather Forecast

    • 47
    • 58

    Rain Showers

    • 45
    • 72

    Rain Showers Likely

    • 42
    • 61

    Chance Rain Showers

    • 41
    • 62

    Partly Sunny

    • 45
    • 63

    Rain Showers Likely

    • 45
    • 63

    Rain Showers Likely

Today 9 May Central Middlesex County

Showers. Highs in the upper 50s. South Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 90 percent.

Tonight 9 May Central Middlesex County

Mostly cloudy. Patchy fog. Showers in the evening. Lows in the upper 40s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 80 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Acton Temperature Statistics

May Temperature

Laurence G Hanscom Field Airport (6.8 miles)

  • Lowest 3 May, 2026

    37.4 °F

  • Average May

    56.8 °F

  • Highest 5 May, 2026

    81 °F

Climate (2021–Present)

Laurence G Hanscom Field Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.7 °F
Get WillyWeather+ to remove ads