What’s the weather at Heiden - Bischofsberg - Grub - Oberegg today? The current Heiden - Bischofsberg - Grub - Oberegg weather is: Slightly cloudy, 18 C° base and C° Summit, 13 km/h wind. Scroll down to Hour by Hour for an hourly Heiden - Bischofsberg - Grub - Oberegg weather forecast breakdown for a detailed Heiden - Bischofsberg - Grub - Oberegg weather and snow forecast for the next seven days.