Echo Posts for upcoming weekend (Friday, Saturday, Sunday))

I am working on and event website. Only plugins I am really using are ‘The Future is Now!’ do display all post no matter of there publishing date and using custom fields.

So at the moment I have codes set up to echo out events for Today, for the whole week and the whole month. I am trying to get a code to work so I can post events for the upcoming weekend (Friday – Sunday). Any help would be great.