June in Plano averages a daily high of 32.9°C with nights around 22.6°C. Expect roughly 6.7 wet days totalling 98.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Plano is March–April.
Based on RICHARDSON, TX US (4.9km), 1995–2024. 19 years of June data.