I found very nice icons in a flat design for XFCE panel weather plugin.
- Install
wget https://zlamalp.gitlab.io/downloads/Clima_Weather_Icons.tar.gz tar -x -f ./Clima_Weather_Icons.tar.gz cp -r Clima/ ~/.config/xfce4/weather/icons/ rm -r Clima/ rm Clima_Weather_Icons.tar.gz
- Change setting in xfce-weather-plugin
