Mortgage rates today have slipped below 6%. According to Zillow, the average 30-year rate is 5.99%. The 15-year average rate is 5.49%. Yahoo Finance has been tracking the move below 6% with our weekly survey of lenders with the best mortgage rates. One of our top-five-ranked lenders has a loan rate as low as 5.5%. Today's mortgage rates Here are the current mortgage rates, according to our latest Zillow data: 30-year fixed: 5.99% 20-year fixed: 5.95% 15-year fixed: 5.49% 5/1 ARM: 6.10% 7/1 ARM: 6. ...