Weekly mortgage rate update

If you have been following along each week, you know rates climbed through July, eased through mid-August, then turned back up in early September. This week the trend continued: rates rose again and the 30-year fixed reached its highest reading in this series. The latest Freddie Mac Primary Mortgage Market Survey® (PMMS), released Thursday, September 10, showed the 30-year fixed at 6.76% and the 15-year fixed at 6.09%. Here is the data and what it means if you are buying, selling, or refinancing in the Tri-Cities.

This week’s rates

Data sourced from the most recent Freddie Mac PMMS release, for the week ending September 10, 2026 (the latest available as of this update):

Source: Freddie Mac Primary Mortgage Market Survey®, week ending September 10, 2026. Rates assume a credit score of 740, 20% down payment, and 0.7 discount points. Actual rates vary by borrower profile. Freddie Mac’s main PMMS page publishes the 30- and 15-year fixed rates; the 5/1 hybrid ARM figure was not separately confirmed in this week’s official release.

What happened this week

Freddie Mac’s release this week carried a simple title: “Mortgage Rates Average 6.76%.” The 30-year fixed moved up five basis points to 6.76%, and the 15-year fixed moved up five basis points to 6.09%. That 6.76% reading is the highest the benchmark 30-year has reached since this weekly series began tracking in late June, and market commentary describes it as a 14-month high.

The driver is familiar: higher global bond yields. Mortgage rates track long-term Treasury yields closely, and when those move up, rates follow. This is not a dramatic, structural breakout. It is a slow, grinding climb, the kind that erodes a little buying power each week rather than all at once. And it is behaving exactly the way the forecasters told us to expect, which I will get to in a moment.

A note on the 5/1 adjustable-rate mortgage: Freddie Mac’s public PMMS page reports the 30- and 15-year fixed rates each week, and this week’s official release did not separately confirm a 5/1 ARM figure. Last week’s survey reading put the 5/1 ARM at 7.03%, already above the 30-year fixed, a signal that lenders are pricing in real uncertainty about where short-term rates head. I prefer not to quote a number I cannot verify, so this week I will stick to the two confirmed fixed rates. For most buyers, the predictability of a fixed rate is the easier decision right now regardless.

What does 6.76% actually mean for your payment?

Let me put real numbers to this. If you are purchasing a $400,000 home in the Tri-Cities with 20% down ($80,000), your loan amount would be $320,000. Here is what that looks like at today’s rates:

Compared to last week, the change on the 30-year is modest, roughly $11 more per month on that $320,000 loan. Compared to the summer low of 6.43% in the first week of July, today’s 6.76% costs about $72 more per month, a clear reminder of what even a few basis points add up to over 30 years. When I put it that way, the honest takeaway is this: the monthly difference from one week to the next is small, but the trend matters, and it has been pointing up since mid-August.

The 15-year fixed at 6.09% costs more each month (about $638 more than the 30-year) but saves roughly $259,000 in total interest over the life of the loan. That trade-off makes sense for some buyers and not others; it depends on your cash flow and your goals. What I always tell clients is to run the numbers for their own situation rather than assume one term fits everyone.

The outlook from Fannie Mae

Fannie Mae’s Economic and Strategic Research (ESR) Group has been consistent on this terrain. Its August 2026 forecast projected the average 30-year fixed rate near 6.7% in the third quarter of 2026 and 6.8% in the fourth, holding near 6.8% into early 2027 before easing only later in the year. That outlook was a sharp revision upward from its July projections, which had called for rates easing into the 6.3% to 6.4% range.

This week’s actual reading of 6.76% is essentially right on that third-quarter projection. What that tells us is that the market is behaving the way the forecasters mapped it: rates grinding up toward 6.8%, driven by elevated global bond yields, inflation uncertainty, and monetary policy that remains restrictive. The useful implication for buyers is that no one is predicting a meaningful drop before mid-2027. Waiting for rates to fall to the low 6s is, on the current evidence, waiting for something the data does not point to.

Both national agencies continue to flag the “lock-in effect”: homeowners with pandemic-era low-rate mortgages who are reluctant to sell, which keeps resale inventory thin beneath steady demand. In the Tri-Cities, continued in-migration from higher-cost West Coast markets meets that constrained supply, which supports home values even as rates stay elevated. The price side of the ledger has been resilient, and that matters for the math of your decision.

What this means for Tri-Cities buyers

Another up week is not the headline anyone hopes for, and I want to be straight with you about it. Rates moved up, and they are at their highest point in this series. But notice what has not happened: there has been no dramatic breakout. The 30-year is trading a few basis points on either side of 6.8%, right where the August forecast mapped it, and this week’s move amounts to roughly $11 per month on a typical Tri-Cities purchase.

Here is what I want you to hear: time in the market beats timing the market. Holding off for months to chase a drop that forecasters do not expect before mid-2027 often costs you more in rising purchase prices and in rent paid while you wait. What actually moves the needle is what you control: your down payment plan, your credit profile, your approval, and being ready to act when the right home appears. A $400,000 home in Kennewick, Richland, Pasco, or West Richland at 6.76% still builds equity month after month in one of the most resilient and affordable housing markets in Washington.

What this means for sellers

When rates rise, buyers shop with slightly less buying power, which is exactly why precise pricing and sharp presentation matter more now than they did in mid-summer. The good news is that this week’s increase is small, and the demand picture in the Tri-Cities has not changed: relocating families from Seattle, Portland, and California keep the pool of qualified, motivated buyers strong.

For sellers, the lesson is steady and unchanged. Homes priced against current market data, staged thoughtfully, marketed professionally, and presented honestly are still drawing serious offers. If you have been watching the weekly numbers from the sidelines, let me tell you what they do not capture: the strength of actual activity on the ground. Demand remains consistent, and a well-positioned home wins in any rate environment. That is where my team and I can help.

The bottom line

Mortgage rates moved up again this week. The 30-year fixed sits at 6.76% (up five basis points) and the 15-year at 6.09% (up five points), both reaching the highest readings in this series. Fannie Mae’s August forecast anticipated this terrain: it expects the 30-year near 6.7% to 6.8% into early 2027, with meaningful easing only later in the year.

The word of the week is steady preparation. Rates are higher than the summer low, but they are behaving exactly like the forecast said they would, and the cost of waiting is usually higher than the cost of acting. Homeownership is about building a future for your family, not timing a market bottom. If you are ready to buy, sell, or simply explore your options, I would love to sit down with you, run the numbers at today’s rates, and map out what is possible for your specific situation.

Sources: Freddie Mac Primary Mortgage Market Survey®, week ending September 10, 2026 (“Mortgage Rates Average 6.76%”, released September 10, 2026). Fannie Mae Economic and Strategic Research Group, August 2026 Economic and Housing Forecast. 5/1 hybrid ARM prior-week figure per the September 3, 2026 survey; this week’s 5/1 ARM reading was not separately confirmed in the official release. Monthly payment estimates calculated with standard amortization formulas, and actual payments vary by loan terms, credit score, taxes, insurance, and other factors. This is not financial advice. Consult a licensed lender for personalized rate quotes.