June in Richland averages a daily high of 27.1°C with nights around 12.8°C. Expect roughly 4.5 wet days totalling 12.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Richland is May–June.
Based on RICHLAND, WA US (3.3km), 1995–2024. 29 years of June data.