June in Nashua averages a daily high of 25.7°C with nights around 13°C. Expect roughly 11.2 wet days totalling 106.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Nashua is May–June.
Based on NASHUA 2 NNW, NH US (2.9km), 1995–2024. 29 years of June data.