Can I change the opacity of radar layers? Avi R December 02, 2015 21:39 Yes, tap the layers icon at the top of the screen and then drag the Weather Layer Opacity slider to your desired setting. Related articles My Radar Map Won't Display! What radar layers are available? Can I change the background image and appearance of the app? Can I save a self text post? It doesn't ask me where to save to? What tools are available in 1Weather?