The current mortgage rate on a 30-year fixed mortgage rose by 0.03 percentage point to 6.62% in the last week.The APR on a 15-year fixed mortgage climbed 0.01 percentage point to 5.64%.The average interest rate on the 30-year fixed-rate jumbo mortgage declined to 6.96%.Using a mortgage calculator can help estimate monthly payments based on interest rate, purchase price, and other expenses.