What’s the weather at Bromont, montagne d’expériences today? The current Bromont, montagne d’expériences weather is: Cloudy, 68 F° base and 64 F° Summit, 6 mph wind. Scroll down to Hour by Hour for an hourly Bromont, montagne d’expériences weather forecast breakdown for a detailed Bromont, montagne d’expériences weather and snow forecast for the next seven days.