The August Consumer Price Index report came out Friday morning, and on the surface it looked like a repeat of July. The Bureau of Labor Statistics reported prices up 0.4% for the month and 3.4% over the past year, the same annual rate as July. The headline landed where forecasters expected, according to CNBC.
The part that moved markets was underneath. Core inflation, which strips out food and energy, rose 0.3% for the month against a forecast of 0.2%. That one-tenth of a point arrived five days before a Federal Reserve meeting where the market was already leaning toward a rate hike, in a week when mortgage rates had already climbed to their highest level in more than a year.
Quick read: Headline inflation held steady, but core prices ran hotter than forecast. Futures markets now treat a quarter-point Fed hike next Wednesday as the likely outcome. Freddie Mac's 30-year average reached 6.76% the day before the report, and variable-rate HELOC borrowers are the most exposed to what the Fed does next.
| Measure | August 2026 | Context |
|---|---|---|
| All items, monthly | +0.4% | +0.1% in July |
| All items, 12-month | +3.4% | Same as July |
| Core (less food and energy), monthly | +0.3% | Forecast was +0.2% |
| Core, 12-month | +2.4% | Down from 2.5% in July |
| Gasoline, monthly | +3.9% | Over a third of the monthly increase |
| Energy, 12-month | +16.3% | Gasoline +27.4% over 12 months |
| Shelter, monthly | +0.3% | +3.0% over 12 months |
Gasoline did much of the work on the headline. The BLS said the gasoline index rose 3.9% in August and accounted for more than a third of the monthly increase. Over the past year, energy prices are up 16.3% and gasoline is up 27.4%. That is why headline inflation sits a full point above core right now: energy is pulling the overall number up, while prices outside food and energy are rising much more slowly.
There is some good news in the table. Core inflation over the past year eased to 2.4% from 2.5%, and shelter, the biggest category in the index, rose a moderate 0.3% on the month. This is not a report showing inflation spiraling. It is a report showing inflation is not cooling fast enough to take a rate hike off the table.
The Fed watches core inflation most closely because food and energy prices swing with weather and world events in ways interest rates cannot fix. Core is the better read on where inflation is heading.
A 0.3% monthly core reading sounds small. Repeated for a full year, it compounds to roughly 3.6%, well above both the current 2.4% annual rate and the Fed's 2% target. One month does not make a trend. But the Fed was already debating whether it needed to tighten, and this reading hands the case for a hike another data point.
Thirty-year mortgage rates follow longer-dated bond yields, mainly the 10-year Treasury, not the Fed's short-term rate. The 10-year was trading around 4.92% Friday, according to Trading Economics, slightly below Thursday's level but still close to its highest point since 2023 and about 0.87 points higher than a year ago. Traders were weighing lower oil prices on the day against the hotter core number.
Fed expectations moved more. Trading Economics reported that the odds of a quarter-point hike next week jumped to about 90% after the release, from roughly 70% before it. Investing.com's Fed Rate Monitor, which draws on futures pricing, showed an 84.7% probability of a move to a 3.75% to 4.00% range as of 10:35 a.m. Eastern. The measures differ, but both point the same way: the market now expects a hike. The Fed has held its target at 3.50% to 3.75% since its July 29 meeting, and its next decision comes Wednesday, September 16.
"Expected" cuts both ways. Futures odds are bets, not decisions. And because a hike is now the expected outcome, a quarter-point increase next week may move mortgage rates less than the headlines suggest. The bigger surprise for bond markets would be a hold, or a signal in the Fed's statement about what comes after September.
| Loan type | This week | Last week | Year ago |
|---|---|---|---|
| 30-year fixed | 6.76% | 6.71% | 6.35% |
| 15-year fixed | 6.09% | 6.04% | 5.50% |
Freddie Mac's survey published Thursday, the day before the CPI report, and the 30-year average of 6.76% is the highest since late June 2025. It has risen in eight of the last ten weeks, up from 6.43% at the start of July. Daily trackers are running higher still: Mortgage News Daily's average for a top-tier 30-year fixed crossed 7% on Thursday for the first time in more than a year, according to Yahoo Finance. Weekly and daily measures use different methods, so read the gap as a sign of direction rather than a precise rate.
In dollars: on a $600,000 30-year loan, principal and interest at 6.76% works out to roughly $3,896 a month, compared with about $3,876 at last week's 6.71% and about $3,733 at the 6.35% of a year ago. That is roughly $160 a month more than the same loan cost last September. On a 15-year at 6.09%, the same $600,000 runs about $5,092 a month. These estimates assume principal and interest only, with no taxes, insurance, or mortgage insurance, and the rate you are quoted will differ from a national survey average.
This week argues even harder for leaving it alone. With the market in the high 6s, your rate is one of the most valuable things you own. If you need cash for a renovation, tuition, or paying down higher-rate debt, borrowing against your equity as a second lien keeps that first mortgage untouched. Our guide to tapping home equity without refinancing walks through the options.
You are the borrower most directly exposed to next week's decision. Most HELOCs are priced off the prime rate, which typically moves with the Fed, so a quarter-point hike would usually raise your rate by the same amount. On a $100,000 drawn balance, that is roughly $21 more a month in interest. Some lenders let you convert part of a line to a fixed rate, and a fixed-rate home equity loan is another way to lock in a number. Our comparison of a home equity loan vs. a HELOC covers the tradeoff.
Your window is narrower than it was in July. A common rule of thumb is that a refinance starts to make sense when you can lower your rate by about 0.75% to 1% after costs, and with the survey average up a third of a point since early July, fewer borrowers clear that bar. If you took out a loan in 2023 or 2024, work out your break-even now so a better week is something you can act on quickly. If you also want cash out, compare a HELOC against a cash-out refinance before assuming the refinance wins.
This week's 0.05 move is about $20 a month on a $600,000 loan. The gap between the best and worst offers on the same file is often much larger, a point Freddie Mac's chief economist, Sam Khater, made in this week's release when he encouraged buyers to get multiple quotes. Comparing lenders through a broker rather than a single bank is one way to do that.
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Check My Rate →The Fed announces its decision Wednesday afternoon, September 16. This is also one of the four meetings a year where officials publish updated projections, including where they expect rates to go, so those signals may matter as much as the decision. Freddie Mac's survey on Thursday, September 17, will be the first to reflect both this report and the Fed's move.
Survey averages are a starting point, not your rate. If you work for a major California organization such as Kaiser Permanente, LAUSD, or CalPERS, MyRateAdvisor's lender relationships may make discounted pricing available to you on a first mortgage or a home equity product. Checking eligibility is free and does not require a credit pull. You can also start with a free equity estimate if you are weighing a second lien.
Inflation data: U.S. Bureau of Labor Statistics, Consumer Price Index for August 2026, released September 11, 2026. Consensus comparisons: CNBC and Trading Economics, September 11, 2026. Treasury yield levels and rate-hike odds: Trading Economics, September 11, 2026; Investing.com Fed Rate Monitor, September 11, 2026, 10:35 a.m. ET. Federal Open Market Committee target range: Federal Reserve statement of July 29, 2026. Daily mortgage rate index: Mortgage News Daily, as reported by Yahoo Finance, September 10, 2026. Source: Freddie Mac Primary Mortgage Market Survey via FRED (Federal Reserve Economic Data), as of September 10, 2026; year-ago comparisons from Freddie Mac's September 10, 2026 release. Survey rates are national averages for borrowers with excellent credit and may differ from the rate you are offered. The annualized core figure compounds the August monthly rate over 12 months and is an illustration, not a forecast. Payment figures are illustrative estimates based on the assumptions stated in the article. This article is general information, not financial advice — talk to a licensed advisor about your specific situation. MyRateAdvisor NMLS #1598577.