I can second that people will rely on the browser to remember the new password or copy/paste the password and then refer to that email when they need it again.

I can second that people will rely on the browser to remember the new password or copy/paste the password and then refer to that email when they need it again. I do this myself sometimes for some sites that I do not use regularly. Like many others have suggested I think a link to a form to create a new password would be better than emailing out a temporary new password.