What’s the weather at Skiarena Andermatt-Sedrun today? The current Skiarena Andermatt-Sedrun weather is: Mostly Sunny, 24 C° base and 12 C° Summit, 11 km/h wind. Scroll down to Hour by Hour for an hourly Skiarena Andermatt-Sedrun weather forecast breakdown for a detailed Skiarena Andermatt-Sedrun weather and snow forecast for the next seven days.