June in McAllen averages a daily high of 35.8°C with nights around 24.6°C. Expect roughly 3.3 wet days totalling 55.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit McAllen is November–March.
Based on MCALLEN, TX US (2.4km), 1995–2024. 27 years of June data.