June in Norwalk averages a daily high of 27.2°C with nights around 14.3°C. Expect roughly 11.4 wet days totalling 127.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Norwalk is August–October.
Based on STAMFORD 5 N, CT US (11.7km), 1995–2024. 19 years of June data.