Mortgage Rate Forecast This Week at a Glance

Updated Thursday, September 10. The week’s first published observation, Tuesday’s 6.77% for the 30-year fixed, came in unchanged from Friday and inside our forecast range of 6.65% to 6.87%, a basis point above the 6.76% base case. The 15-year fixed rose to 6.14%, narrowing its discount to about 63 basis points, and the 10-year Treasury has climbed for three sessions running to 4.83% on Wednesday.

Our mortgage rate forecast stays modestly higher with Medium confidence, and the base case for Friday remains 6.78%. We keep the figures published on Monday rather than revising them mid-week, so the track record scores the call we actually made. Thursday’s PPI report and Friday’s CPI report are still ahead, and Treasuries drifting up into them is why we see the risk sitting on the upside.

5-Day Mortgage Rate Forecast: September 7 – 11, 2026

Our day-by-day 30-year mortgage rate forecast below maps our mortgage rate predictions this week for both the 30-year and 15-year fixed rate — a clear signal on mortgage rates going up or down through September 11.

Data update: Optimal Blue publishes each session’s observation the next business day, so the table starts from the September 8 reading, the latest published when this forecast was written. Each range is a 90% band built from the average daily move of the past month (2.2 basis points), widened with the sessions ahead and on scheduled-release days; the point figure is the base case, not a prediction to the basis point. Monday is Labor Day: the bond market is closed and no observation prints. Days marked Actual show the published Optimal Blue observation for that date; their forecast figures are retired and the remaining days keep the base case published at the start of the week.

Key Catalysts Behind This Week’s Mortgage Rate Forecast

The Federal Reserve’s meeting on September 16 falls the following week, so this week’s inflation data sets the tone the committee walks in with.

Where Mortgage Rates Stand Heading Into This Week

The 30-year fixed sits at 6.77% in Tuesday’s published observation, up 0.02 points from a week earlier and about 0.50 above a year ago, when the benchmark stood at 6.27% after a sharp late-summer decline; it remains within a basis point of the one-year high of 6.78% set on September 2. The 15-year fixed at 6.14% has risen 13 basis points across two published sessions, so the shorter term is a little less of a bargain than it was on Monday.

Last week’s forecast called for a drift lower toward 6.65%; Friday’s published close was 6.77%, so the call was wrong by 12 basis points and the track record above now records it. That is the point of keeping a public score: the miss came from a jobs report far stronger than the market expected, and the current call starts from that firmer labor market rather than from a hope for relief.

The 10-year Treasury closed Wednesday at 4.83%, up from 4.80% on Tuesday and 4.78% on Friday, according to the U.S. Treasury’s daily yield curve. On Tuesday, the last day with both figures published, the mortgage benchmark sat about 197 basis points above the 10-year, close to its one-year average, so mortgage rates are tracking Treasuries closely rather than carrying an unusual risk premium.

30-year and 15-year figures are note rates from Optimal Blue’s daily rate-lock index; the forecast is an estimate, not a guarantee. Sources & further reading: Optimal Blue (OBMMI) via FRED, U.S. Treasury daily yield curve (mirrored as DGS10 on FRED), BLS CPI, BLS PPI and Employment Situation, BEA PCE, the Federal Reserve FOMC calendar, and Freddie Mac PMMS.

Mortgage Rate Forecast: Should You Lock or Float?

For a closing inside 30 days, the case for locking has strengthened since Monday: Treasuries have moved higher into the releases, and the two inflation prints now land within 24 hours of each other. A lock before Thursday’s PPI report at 8:30 a.m. Eastern trades away a favorable move for protection against an unfavorable one, on the lender’s terms.

For a closing 45 to 60 days out, floating through the PPI report and deciding before Friday’s CPI report is still defensible if a quarter-point higher payment is survivable. A float-down option, where offered, is a separate feature with its own cost, not a reason to stay unlocked.

What This Week’s Mortgage Rates Mean For You

First-Time Homebuyers

Program pricing matters more than the headline this week: on Optimal Blue’s indices FHA sits about 25 basis points and VA about 35 basis points below conventional, and a pre-approval dated after Tuesday reflects the post-holiday market.

Refinancing

At 6.77%, refinancing is most compelling for borrowers with rates materially above today’s benchmark, and the 15-year’s rise to 6.14% slightly weakens the case for refinancing into the shorter term. Closing costs, monthly savings and how long you keep the loan still decide it.

Real Estate Investors

Investor pricing typically runs above the conforming benchmark, and Tuesday’s flat 30-year did not change that; underwrite to the rate you can lock this week rather than to a hoped-for dip after the CPI report.

Mortgage Rate Forecast: Frequently Asked Questions

Below we answer what borrowers ask most about this mortgage rate forecast — from should I lock my rate to our 30 year fixed rate forecast and the big one: will mortgage rates go down this week?

Will mortgage rates go down this week?

Our mortgage rate forecast for September 7 – 11, 2026 still expects the 30-year fixed to end the week near 6.78%, with Medium confidence; Tuesday’s published 6.77% sat inside the forecast range. A cooler-than-expected CPI report on Friday, September 11 remains the main scenario that would push rates lower instead.

Should I lock my mortgage rate this week?

A borrower closing within 30 days has a strong case for locking before Thursday’s PPI report at 8:30 a.m. Eastern. With the 10-year Treasury at 4.83% and the CPI report due Friday, we see more near-term upside than downside risk to rates.

How is the forecast doing so far this week?

Tuesday, September 8 was the first observation that could test it: 6.77% against a base case of 6.76% and a range of 6.65% to 6.87%. Monday was a market holiday with no observation, and Wednesday’s reading publishes on Thursday; the week is graded once Friday’s observation is published.

How does the CPI report affect mortgage rates?

The Consumer Price Index moves Treasury yields first, and mortgage rates follow through a spread that widens or narrows with MBS demand and volatility. A hotter reading than expected typically pushes rates up; a cooler one tends to pull them down, and the size of the surprise matters more than its direction.