Mortgage buyer Freddie Mac says the average rate on the 30-year loan dropped to 4.32 percent from 4.50 percent last week. The average on the 15-year fixed loan declined to 3.37 percent from 3.54 percent.
Both are the lowest averages since July 25.
Mortgage rates are nearly a full percentage point higher than in May, when the Fed first signaled it might slow its $85-billion-a-month in bond buys. But last week the Fed kept the pace steady after lowering its outlook for economic growth.
The bond purchases are intended to lower long-term interest rates, including mortgage rates.