With a population of around 20,900, Acton sits in Massachusetts, United States. The city operates in the Eastern Time Zone.
Across a typical year Acton sees about 43 inches of precipitation, with October the wettest month and January the driest. Temperatures range from January lows near 16°F up to July highs around 83°F, averaging 49°F annually — characteristic of a humid continental climate.
View historical weather for Acton · More cities in Massachusetts