July in Lethbridge averages a daily high of 26.9°C with nights around 11.7°C. Expect roughly 7.6 wet days totalling 32.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lethbridge is July–September.
Based on LETHBRIDGE CDA, AB CA (3.7km), 1995–2024. 29 years of July data.