I downloaded a weather app for Xubuntu 18.04. Went to task bar clicked on all and accessories, but it does not show weather indicator. How do I find it? Thanks
Welcome. In the XFCE "Menu," you can search for the name. Does it show? In the "Software" application, you can look under the "Installed" tab, and if you find it, "Launch" from there.
How did you install it anyway? Command line in a terminal? Synaptic? Software manager?