What’s the weather at Kelchsau - SkiWelt today? The current Kelchsau - SkiWelt weather is: Mostly Sunny, 6 C° base and 1 C° Summit, 8 km/h wind. Scroll down to Hour by Hour for an hourly Kelchsau - SkiWelt weather forecast breakdown for a detailed Kelchsau - SkiWelt weather and snow forecast for the next seven days.