July in Saint-Jérôme averages a daily high of 25.8°C with nights around 14.8°C. Expect roughly 11.8 wet days totalling 90.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Saint-Jérôme is June–September.
Based on ST JEROME, QC CA (4.2km), 1995–2024. 23 years of July data.