October in Brossard averages a daily high of 14.2°C with nights around 4.4°C. Expect roughly 11.8 wet days totalling 106.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Brossard is May–September.
Based on LAPRAIRIE, QC CA (7.8km), 1995–2024. 14 years of October data.