Fed rate decision mortgage rates outlook for September 2026: 30-year fixed at 6.71 percent, 10-year Treasury at 4.77 percent, and the odds of a hike or cut at the next FOMC meeting.
As of September 3, 2026, the 30-year fixed mortgage rate stands at 6.71 percent and the 15-year fixed at 6.04 percent, according to the latest FRED release. The 10-year Treasury yield is 4.77 percent, producing a 1.94 percent spread between Treasuries and 30-year mortgages. These levels reflect a market that has priced in the Federal Reserve’s decision to hold the federal funds rate steady at 3.50–3.75 percent since the July 2026 FOMC meeting.
Minutes released after the July 29 meeting show the FOMC voted unanimously to leave the target range unchanged and to maintain the interest rate paid on reserve balances at 3.65 percent. The statement noted that three consecutive rate cuts in late 2025 had already eased financial conditions, and that inflation and employment data did not yet justify further adjustment. Because mortgage pricing is anchored more to Treasury yields than to the federal funds rate itself, the unchanged policy stance produced only modest intraday movement in the 10-year note.
CME Group FedWatch data released on September 4 assigns roughly a 35 percent probability to a 25-basis-point hike at the September 16–17 meeting—the first time since 2023 that tightening odds have reached double digits. Conversely, the market assigns a 60 percent chance that the committee will again leave rates unchanged. The remaining 5 percent reflects a small but non-zero probability of a cut should incoming CPI and employment prints surprise sharply to the downside.
| Rate Metric | Latest Value | Source |
|---|---|---|
| 30-Year Fixed Mortgage | 6.71% | FRED 9/3/26 |
| 15-Year Fixed Mortgage | 6.04% | FRED 9/3/26 |
| 10-Year Treasury Yield | 4.77% | FRED 9/3/26 |
| Treasury–Mortgage Spread | 1.94% | Calculated |
| Federal Funds Target Range | 3.50–3.75% | FOMC July 26 |
The table illustrates that the mortgage-Treasury spread has remained above 190 basis points for six consecutive weeks. A 25-basis-point hike in the federal funds rate would likely push the 10-year yield higher by 5–10 basis points, translating to a roughly 8–15 basis point increase in 30-year mortgage quotes if the spread holds steady.
Rate sheets pulled on September 4 show that the national 30-year average of 6.71 percent masks meaningful geographic dispersion. In Seattle metro, conforming 30-year loans averaged 6.64 percent, while the Dallas-Fort Worth market printed 6.83 percent. Credit unions in the Chicago region offered 6.58 percent for borrowers with credit scores above 760, illustrating how lender competition and local funding costs can override small moves in the benchmark Treasury yield.
Borrowers can run live scenarios at HomeRates.ai to see how a 10-, 25-, or 50-basis-point shift in the 10-year Treasury would affect monthly payments on a $400,000 loan. Under today’s 6.71 percent rate, principal and interest total $2,589. A 15-basis-point rise to 6.86 percent lifts the payment to $2,629—an additional $480 per year. Conversely, a decline to 6.50 percent would reduce the annual outlay by roughly $500.
Between now and September 16, markets will absorb the August CPI print (September 10), the second estimate of Q2 GDP (September 11), and weekly jobless claims (September 11). Each release carries the potential to shift the 10-year yield by 5–8 basis points, enough to move mortgage rate quotes even if the Fed itself stays on hold.
With the federal funds rate already at 3.50–3.75 percent and futures pricing a one-in-three chance of a hike, mortgage rates are more likely to follow Treasury moves than any immediate policy surprise. Homebuyers who want to quantify the impact of a 10- or 25-basis-point swing should model payments now at HomeRates.ai rather than waiting for the September 17 announcement.
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