National average mortgage rates fell heading into the weekend of Saturday, 5 September 2026, according to Zillow lender marketplace data.

The 30-year fixed rate decreased by 4 basis points to 6.67%. The 15-year fixed rate saw a 10 basis point decrease to 6.04%, while the 5/1 ARM fell by 39 basis points to 6.64%, following a 39 basis point increase the previous day.

Mortgage rate comparisons

The source notes different characteristics for various mortgage types:

• 30-year fixed: Offers lower and predictable monthly payments, but carries higher interest costs over the life of the loan compared to shorter terms.
• 15-year fixed: Features lower interest rates and allows borrowers to pay off mortgages sooner, though monthly payments are higher.
• 5/1 ARM: Provides an introductory rate that is usually lower than a 30-year fixed rate, but rates adjust annually after an initial five-year period, making payments unpredictable.

While Zillow reported a 30-year fixed rate of 6.67%, Freddie Mac reported 6.71% for the week. Discrepancies occur because Zillow reports daily rates from its lender marketplace, whereas Freddie Mac averages weekly data from loan applications.

Forecasts

Forecasts for 30-year mortgage rates include:

• MBA: Expects rates to range between 6.6% and 6.7% through 2026.
• Fannie Mae: Predicts rates will range between 6.7% and 6.8% through the end of the year.