The national average mortgage rate for a 30-year fixed loan dropped to 6.31% on Tuesday, June 16, 2026, a decline of four basis points from the prior day, according to the Zillow lender marketplace.
That decline came against a mixed backdrop: the 20-year fixed rate rose to 6.19% on Tuesday, up nine basis points from Monday, while the 15-year fixed averaged 5.74%, four basis points lower than the previous day. Meanwhile the 5/1 adjustable-rate mortgage (ARM) moved up a single basis point to 6.31% on Tuesday.
Those figures are national averages rounded to the nearest hundredth and reflect the snapshot of mortgage pricing published for June 16. Fixed-rate mortgages lock in the interest rate for the life of the loan from day one; refinance rates are typically higher than purchase rates, a distinction the data reiterates for borrowers weighing options.
Concrete numbers show how these different rates translate to monthly costs. By way of illustration, a $400,000 mortgage with a 30-year term at a 6.19% rate would carry a monthly principal-and-interest payment of about $2,447.28 and result in roughly $481,021 in interest over the life of the loan. For borrowers considering a shorter term, a $400,000 15-year mortgage at a 5.65% rate would yield a monthly principal-and-interest payment of about $3,300.26 and about $194,047 in total interest.
The day’s pattern contains a notable split: the benchmark 30-year fixed rate eased while the 20-year fixed and the 5/1 ARM moved higher. That divergence is unusual enough on the same daily update to matter to homebuyers and refinancers who track the 30-year figure as the yardstick for long-term borrowing costs.
For consumers, the practical implication is immediate but narrow: the average 30-year fixed being lower by four basis points marginally reduces borrowing costs for those who can lock a long-term rate now, while small increases in the 20-year and adjustable product raise the cost of those specific options. The payment examples above show that choosing a shorter term or a different rate structure changes monthly outlays and total interest paid by a large margin even when quoted rates are within a point of one another.
The data release does not project future moves. How long the 30-year fixed will remain near 6.31% is unanswered by the marketplace update; tomorrow’s rate publication will be the next concrete data point. Borrowers planning to lock a rate must decide now whether the modest drop in the 30-year average justifies committing, or whether the same-day rise in some other products signals a broader reshuffle that could change the calculus on short-notice refinancing or purchase offers.
