This appeared to not be possible for a while, hence creating this note on where it is hidden away once you are logged into WordPress.org.

After some more looking, and a bit of searching, I found that the View your profile link can be found specifically on the WordPress.org Forums.

Notice that the View your profile is at the top right of this page. Or you can click this link which should take you directly to your profile.

To change your password, simply follow these steps:

1. Click the view your profile link
2. Click edit on the right hand side of the page
3. Change your password
4. Save changes