cm8In simplest terms, CM8 is a form of Cetyl Myristoleate that is distilled and crystallized for purification and strength. This is done to isolate the most effective properties of CetylCM8 - Weather warnings issued 14-day forecast. Weather warnings issued. Forecast - CM8. Day by day forecast. Last updated at 21:04. Tonht, A clear sky and a moderate breeze.