I installed an older version (6G) on Raspbian (not ArchLinux.) if you want to have a few other weather statuses spoken, you will need to install “festival”, fix a few things, and install a TTS voice. There are 3 main scripts used (AutoSky, AutoSky.ON and AutoSky.OFF) that I can probably try to get and provide them to you and you can adjust them for your installation.