What’s the weather at Montchavin - La Plagne today? The current Montchavin - La Plagne weather is: Mostly Sunny, 26 C° base and 10 C° Summit, 11 km/h wind. Scroll down to Hour by Hour for an hourly Montchavin - La Plagne weather forecast breakdown for a detailed Montchavin - La Plagne weather and snow forecast for the next seven days.