Today, the rate on a 30-year fixed refinance decreased to 6.88%.The average rate for a 15-year financed mortgage was 5.76%, and for a 20-year financed mortgage, it was 6.69%.For a 30-year fixed-rate mortgage refinance of $100,000, the monthly payment is $658 for principal and interest.The total interest costs over the life of the loan would be about $137,385.The APR for a 30-year fixed-rate mortgage is 6.91%.For a 20-year fixed refinance mortgage, the average interest rate is 6.69%, with an APR of 6.73%.A 15-year fixed refinance mortgage has an average interest rate of 5.76% and an APR of 5.81%.At today's interest rates, a 15-year fixed-rate mortgage refinance of $100,000 would cost $831 per month.It's important to compare current interest rates, mortgage balance, and loan terms when considering refinancing to determine potential savings.Experts predict average mortgage rates to remain in the mid-to-high 6% range in the first half of 2025, with a potential decrease by the year-end.