US 30-year fixed mortgage rates declined to 6.65% as of August 20, 2026, down from 6.67% the previous week. Freddie Mac Chief Economist Sam Khater said the decline provided modest relief for homebuyers, while noting that borrowers can potentially save thousands by shopping around for the best mortgage rate. A year earlier, the 30-year fixed-rate mortgage averaged 6.58%. Meanwhile, the 15-year fixed-rate mortgage averaged 5.95%, down from 5.96% the previous week.