US 30-year fixed mortgage rates averaged 6.66% as of August 27th, 2026, slightly up from 6.65% in the prior week. “Mortgage rates changed little this week averaging 6.66%,” said Sam Khater, Freddie Mac’s Chief Economist. The economy remains resilient, supported by steady consumer spending and rising household incomes, while increased housing supply and slower price growth in many areas are giving buyers more options and helping create a more balanced housing market. A year earlier, the 30-year fixed-rate mortgage averaged 6.56%. Meanwhile, the 15-year fixed-rate mortgage averaged 5.98%, up from 5.95% in the previous week.