August in Brossard averages a daily high of 25.8°C with nights around 14.2°C. Expect roughly 8.9 wet days totalling 83.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Brossard is May–September.
Based on LAPRAIRIE, QC CA (7.8km), 1995–2024. 10 years of August data.