The rate on a 30-year fixed refinance increased to 6.94% while the 15-year fixed-rate refinance mortgage average rate is 5.9%.For 20-year mortgage refinances, the average rate is 6.79%.The average rate on a 30-year fixed-rate mortgage refinance is up 0.32% from a week ago, with an APR of 6.97%.A 30-year fixed mortgage refi at 6.94% would cost $661 per month in principal and interest, totaling about $138,736 in interest over the loan life.The 20-year fixed refinance mortgage rate is currently 6.79% with an APR of 6.83%.A 20-year fixed rate mortgage refinance of $100,000 would cost $763 per month in principal and interest, totaling around $83,573 in interest.The average interest rate on the 15-year fixed refinance mortgage is 5.9%.At today's rate, you would pay $838 per month in principal and interest for a 15-year fixed refinance.The average interest rate on a 30-year fixed-rate jumbo mortgage refinance is 7.33%, while a 15-year fixed-rate jumbo refinance has a rate of 6.53%.Mortgage refinance rates are typically higher than purchase loan rates due to additional risk for the lender.