We've added a weather station to our Montana. Our first problem was how to mount the outside unit (the one that sends wirelessly the temp/humidity/wind speed, etc.). We used PVC pipe and attached it to the side of Monty with two fasteners normally used to hang brooms, mops, etc. It easily pops on and off. We store the outside unit on the bed for travel. The next problem was how to mount the inside unit. Because of the curvature on the back, we couldn't mount it to the wall. So we put it in a shadow box frame and fixed the frame to an end cabinet.
This photo shows the Weather Station up close:
This photo shows how we mounted it to the end of a cabinet:
This photo shows how the outside unit is mounted:
Dick and Sharon