June in Lynn averages a daily high of 23.7°C with nights around 14.1°C. Expect roughly 10 wet days totalling 104.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lynn is June–September.
Based on MARBLEHEAD, MA US (7.9km), 1995–2024. 27 years of June data.