MORTGAGE RATES are an important part of the buying decision. If you are financing a home purchase, your mortgage rate affects your monthly payment, the price of the house you can qualify for. It can potentially affect the timing of your purchase. The chart below gives current and historical weekly mortgage rates. Rates fluctuate based on numerous economic and government factors and policies. Buyers and sellers benefit from lower interest rates. More buyers can qualify with lower rates, which means more sellers can sell. When rates are low, loan applications and refinances increase.