Freddie Mac’s weekly mortgage survey, released September 3, 2026, put the average 30-year fixed-rate mortgage at 6.71 percent, and the 15-year fixed-rate loan at 6.04 percent. Both numbers are higher than the week before, and both are higher than where rates sat a year ago. For anyone house-hunting or trying to time a refinance, the direction matters as much as the level: rates have been drifting up, not down, over the past several weeks.
The Two Numbers This Week
The 30-year fixed-rate mortgage, the loan most home buyers use, averaged 6.71 percent for the survey week ending September 3. That’s up five basis points from 6.66 percent the prior week. The 15-year fixed-rate mortgage, more common among refinancers and buyers who can handle a higher monthly payment in exchange for paying off the loan faster, averaged 6.04 percent, up six basis points from 5.98 percent.
Those figures come from Freddie Mac’s weekly Primary Mortgage Market Survey release, the benchmark most lenders and housing economists point to when discussing “the” national mortgage rate.
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Why the Year-Over-Year Comparison Matters More Than the Week
A five- or six-basis-point weekly move is small on its own. What stands out is the comparison to a year ago: the 30-year rate was 6.50 percent at this point last September, meaning it’s now 21 basis points higher than a year earlier. The 15-year rate has moved even more, up 44 basis points from 5.60 percent a year ago to 6.04 percent today. That’s the detail worth sitting with if you’ve been assuming rates have generally been easing since last year. On these two benchmark products, they haven’t. Anyone who refinanced or bought expecting this September to look meaningfully cheaper than last September is working from the wrong assumption.
Three Straight Weeks of Higher Rates
This week’s increase isn’t an isolated blip. Freddie Mac’s own weekly archive shows the 30-year rate climbing from 6.65 percent on August 20, to 6.66 percent on August 27, to 6.71 percent on September 3, with the 15-year rate following the same pattern: 5.95 percent, then 5.98 percent, then 6.04 percent. Three consecutive weekly increases, even small ones, is a different story than a single noisy data point. It suggests the upward pressure on rates has been consistent through late August and into September, not a one-week fluctuation likely to reverse itself next Thursday.
What Moves the Weekly Number
Freddie Mac’s Primary Mortgage Market Survey, known as the PMMS, is based on actual loan applications submitted to Freddie Mac through its Loan Product Advisor system, drawn from a mix of credit unions, commercial banks, and mortgage companies nationwide. It reflects rates for conventional, conforming loans with 20 percent down and strong credit, so it’s a benchmark, not a promise; individual borrowers with lower credit scores or smaller down payments will typically see a different number from their own lender. “Conforming” also has a specific dollar meaning: the Federal Housing Finance Agency set the 2026 baseline conforming loan limit at $832,750 for a one-unit home in most of the country, with a higher ceiling of $1,249,125 in expensive metro areas. A loan above that local limit is a jumbo loan, priced separately by individual lenders and not captured in the PMMS number at all. The survey window runs Thursday through the following Wednesday, and results publish every Thursday at noon Eastern, so the 6.71 percent and 6.04 percent figures reflect applications gathered in the final week of August into early September.
What a 15-Basis-Point Gap Between Loans Means for a Monthly Payment
The roughly 67-basis-point gap between the 30-year rate and the 15-year rate is where the real household math lives. A 15-year loan carries a lower rate but a much higher required monthly payment, since the balance amortizes over half the time. A 30-year loan carries a higher rate but a lower payment, spreading principal over a longer period and paying meaningfully more interest over the life of the loan as a result. Which one makes sense depends on whether the higher fixed monthly commitment on a 15-year loan fits comfortably into a household budget, or whether the flexibility of a lower 30-year payment matters more, even at a higher rate.
Reading This Week’s Number in Context
Mortgage rates move on more than any single data release, but the practical takeaway from this week’s PMMS is simple: both benchmark fixed rates ticked up week over week, both have now risen three weeks running, and both remain above where they stood a year ago. That combination, rising short-term and rising year-over-year, is the opposite of the “rates are finally coming down” narrative that circulates whenever there’s talk of a possible interest-rate cut elsewhere in the economy. Freddie Mac’s own weekly number is the most direct way to check that narrative against what’s actually happening in loan applications, rather than relying on forecasts of where rates might go next. For a buyer weighing whether to lock a rate now or wait, that distinction between a hopeful forecast and this week’s actual survey result is the one worth paying attention to.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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