I have the ASUS_A009 and the weather app that comes with it.   It shows, among other things, the predicted weather and temperatures for the next seven days.  Just above the icons for the weather, there's percentages, but there's no explanation of what they mean.  I'd ask the developers, but I don't know the apps name as it doesn't show up in either the Play Store or Application Manager.  If anybody knows what the percentages represent, or the program's name, I'd appreciate any useful information.