WASHINGTON—The average long-term U.S. mortgage rate rose this week after falling for six straight weeks, adding to the challenges potential homebuyers face amid higher home prices and a limited supply of available houses.
Mortgage buyer Freddie Mac reported Thursday that the average on the benchmark 30-year rate increased to 6.42 percent from 6.27 percent last week. That is more than double the year-ago average rate of 3.11 percent.
