June in West Allis averages a daily high of 26.3°C with nights around 14.5°C. Expect roughly 12.4 wet days totalling 133.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit West Allis is August–September.
Based on WEST ALLIS, WI US (2.5km), 1995–2024. 14 years of June data.