FreddieMac Primary Mortgage Market Survey®

https://www.freddiemac.com/pmms

The above link is a good resource to show the general trend of mortgage rates in the U.S. This is a Survey by Freddie Mac that comes out every Thursday, usually late morning or early afternoon. The rate is comprised from many lenders to come up with averages for 30yr fixed and 15yr fixed mortgages over the past week along with some market commentary and an easy to view interactive graph