U.S. mortgage rates offered homebuyers modest relief heading into Monday, Aug. 17, but borrowing costs remain elevated as long-term Treasury yields stay above 5% at the far end of the curve.
U.S. mortgage rates offered homebuyers modest relief heading into Monday, Aug. 17, but borrowing costs remain elevated as long-term Treasury yields stay above 5% at the far end of the curve. The latest Freddie Mac data showed the average 30-year fixed mortgage rate at 6.67%, while investors continue to demand higher yields on long-dated U.S. government debt.
Freddie Mac said the 30-year fixed rate averaged 6.67% as of Aug. 13, down from 6.69% the previous week. The average 15-year fixed mortgage rate fell to 5.96% from 6.01%. A year earlier, the respective averages were 6.58% and 5.71%. Freddie Mac's figures reflect mortgage applications submitted from Thursday through Wednesday rather than live Monday lender quotes.
A more frequently updated measure from Mortgage News Daily put the 30-year fixed rate at 6.71% on Friday, Aug. 14, up 2 basis points on the day but still around its lowest level in four weeks.
Mortgage Rates Remain Well Above Their 2026 LowThe long-term Freddie Mac chart shows how sharply mortgage costs have shifted since the ultra-low-rate period of 2020 and 2021. Rates briefly returned below 6% earlier this year, with the 30-year average reaching 5.98% on Feb. 26, before reversing higher through the spring and summer.
U.S. 30-Year Fixed Mortgage Rate Historical Chart. Source: Freddie Mac
The difference is meaningful for borrowers. On a $400,000, 30-year loan, a 6.67% rate produces principal-and-interest payments of about $2,573 per month, compared with roughly $2,393 at 5.98%. That is approximately $180 more each month before property taxes, insurance and other housing costs.
Treasury Yields Keep Pressure on Mortgage Borrowing CostsMortgage rates are closely influenced by the bond market, particularly movements in longer-term Treasury yields. The U.S. Treasury's official yield curve showed the 10-year yield at 4.68% on Aug. 14, up from 4.63% a day earlier. The 20-year and 30-year yields both stood at 5.25%, highlighting persistent pressure at the long end of the curve.
U.S. Treasury Yield Curve. Source: TreasuryBonds.com (@TreasuryBonds1)
Long-term borrowing costs remain a key risk for mortgages even as shorter-term interest-rate expectations soften. TreasuryBonds.com highlighted Wednesday's upcoming 20-year Treasury auction as another test of investor appetite for long-duration government debt. Treasury's latest quarterly financing plan calls for $42 billion of 20-year issuance during the July-September quarter while maintaining current nominal coupon auction sizes.
Inflation is offering some relief but has not disappeared. Consumer prices rose 3.4% from a year earlier in July, down from 3.5% in June, while core inflation eased to 2.5%. Producer prices were unchanged during July but remained 4.7% higher year over year.
The Federal Reserve held its benchmark rate at 3.5%-3.75% on July 29, but mortgage rates can remain elevated even without a Fed increase when bond investors demand higher long-term yields.
Housing activity reflects that pressure. Mortgage applications increased 3.6% in the week ended Aug. 7 as the MBA's average 30-year contract rate eased to 6.77%, while July existing-home sales fell 1.7% to an annualized 4.06 million units.
For borrowers, the near-term mortgage rate outlook now depends heavily on whether Treasury yields retreat. A sustained decline in the 10-year yield could give mortgage rates more room to fall, while another rise in long-term yields would make a return toward 6% increasingly difficult.
