The average 30-year fixed rate today, Friday, July 31, 2026, is 6.55%, down 10 basis points since yesterday. Learn more: Dig deeper into the 7 home refinance optionsFree mortgage calculatorYour mortgage rate plays a large role in how much your monthly payment will be. How mortgage interest rates workA mortgage interest rate is a fee for borrowing money from your lender, expressed as a percentage. The average 30-year fixed rate today, Friday, July 31, 2026, is 6.55%, down 10 basis points since yesterday. Mortgage interest rates today: FAQsWhat are mortgage interest rates doing today?