Average mortgage rates show a slight increase, while lowest rates remained at all-time lows according to the LendingTree Weekly Mortgage Rate Pulse, which tracks the lowest and average mortgage rates offered by lenders on the LendingTree network.

OnAugust 30, averagehome loan ratesoffered by LendingTree network lenders were 4.39% (4.66% APR) for 30-year fixed mortgages, 3.63% (4.05% APR) for 15-year fixed mortgages and 3.41% (3.69% APR) for 5/1 adjustable rate mortgages (ARM).

On the same day, the lowest mortgage rates offered by lenders on the LendingTree network were 3.75 percent (3.88% APR) for a 30-year fixed mortgage, 2.88 percent (3.11% APR) for a 15-year fixed mortgage and 2.50 percent (3.04% APR) for a 5/1 ARM.

"Although average rates are beginning to slightly increase from record-lows, qualified homeowners can still realize sizeable savings by refinancing," saysDoug Lebda, Chairman and CEO of LendingTree.com.