June in Newton averages a daily high of 26°C with nights around 14.6°C. Expect roughly 11.9 wet days totalling 109.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Newton is May–June.
Based on JAMAICA PLAIN, MA US (7.9km), 1995–2024. 24 years of June data.