India, Aug. 23 -- Mortgage rates are mostly higher today. The average 30-year fixed mortgage rate rose to 6.64%, up 10 basis points from last week, according to rates from the Zillow lender marketplace. The average 15-year fixed rate also moved higher, rising two basis points to 5.88%, while the 5/1 ARM jumped 50 basis points to 6.74%, according to Yahoo Finance.

Today's mortgage rates remain above 6%. According to the latest Zillow data for Sunday, August 23, the national average rates are:

The rates are national averages. The Zillow figures are rounded to the nearest hundredth, so the rate a homebuyer actually gets can be different. Several factors can influence the mortgage rate a borrower ultimately receives, including their credit ...