What’s the weather at Sainte Foy Tarentaise today? The current Sainte Foy Tarentaise weather is: Mostly Sunny, 19 C° base and 12 C° Summit, 6 km/h wind. Scroll down to Hour by Hour for an hourly Sainte Foy Tarentaise weather forecast breakdown for a detailed Sainte Foy Tarentaise weather and snow forecast for the next seven days.