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! 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 radar layers are available? What tools are available in 1Weather?