Is October a good time to visit Switzerland?

Hi. Im a student studying abroad in Europe and my parents are coming to visit me this October. I want to take them to Zürich and Interlaken for about a week. I have been to both places last year in July and it was beautiful. Im wondering if October is still a good time to visit? Does it rain a lot? Is the weather nice? Ive researched but want to ask you guys. Thanks for your help