June in Lancaster averages a daily high of 27.8°C with nights around 15.6°C. Expect roughly 11.1 wet days totalling 106.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lancaster is May–June.
Based on LANCASTER 2 NE FILT PLANT, PA US (3km), 1995–2024. 29 years of June data.