Mortgage rates today, September 15, 2026: what the Fed decision could change

The latest official weekly benchmark for a 30-year fixed mortgage is 6.76%, according to Freddie Mac’s September 10 release. That is the clearest answer to “what are mortgage rates today?” available from the government-sponsored enterprise, but it is not a live quote and it does not predict what the Federal Reserve will announce on September 16. The Fed’s decision can affect the bond-market expectations behind mortgage pricing. It does not mechanically add or subtract the same amount from a 30-year mortgage rate.135

What is the mortgage rate today?

Freddie Mac reported a 6.76% average for 30-year fixed mortgages and 6.09% for 15-year fixed mortgages on September 10. Both were 0.05 percentage point higher than one week earlier. The 30-year average has risen in three consecutive releases: 6.66% on August 27, 6.71% on September 3 and 6.76% on September 10.1

The word average matters. Freddie Mac builds the Primary Mortgage Market Survey from selected purchase-loan applications submitted through its Loan Product Advisor system. The sample is limited to conventional, conforming, fully amortizing loans on owner-occupied single-family properties, emphasizing excellent credit and roughly 20% down. It does not represent every borrower, loan type or lender. Freddie Mac also does not publish average fees and discount points with the current series because those fields are not consistently supplied.2

A lender’s rate today can therefore be above or below 6.76% without contradicting the survey. Credit profile, down payment, property use, loan type, repayment term, points and lender pricing all matter. The weekly average is a market benchmark. A dated Loan Estimate is the document that shows the proposed rate, payment and closing costs for a specific application.268

When is the September Fed decision?

The Federal Open Market Committee is meeting September 15–16. The Federal Reserve’s calendar schedules the policy announcement for 2 p.m. Eastern time on Wednesday, September 16, followed by a press conference at 2:30 p.m. Before this meeting, the federal funds target range remains 3.50%–3.75%, the level maintained at the July 29 meeting.34

The outcome is not known as of this article’s September 15 evidence cutoff. In July, the committee voted 9–3 to hold the target range, while three members preferred a quarter-point increase. That split is relevant context, not a September forecast. Reporting a hike, hold or cut before the September statement would turn an expectation into a fact that the Fed has not yet published.43

Will a Fed rate hike make mortgage rates rise?

Not necessarily on the day, and not point-for-point. The federal funds rate is an overnight interest rate that most directly anchors short-term borrowing. A 30-year mortgage is a long-duration loan. Fannie Mae describes the 10-year Treasury yield as the main benchmark for the 30-year mortgage rate, then adds a mortgage spread that reflects mortgage-backed-security risk, origination costs, servicing, guarantee fees and lender margins.5

Markets can adjust before a Fed meeting as investors change their expectations. If the decision and the Fed’s message match what bond investors already assumed, mortgage rates may show little immediate response. If the decision, projections or press conference changes the expected path of inflation or future short-term rates, longer-term Treasury yields can move—and mortgage pricing can move with them. Changes in mortgage spreads can reinforce or offset that move.53

A recent historical example shows why the direction is not automatic. After the Fed cut the federal funds rate by 0.50 percentage point in September 2024, Fannie Mae noted that the average 30-year mortgage rate rose from 6.09% on September 19 to as high as 6.84% on November 21. Stronger economic data, stickier inflation and changing policy expectations pushed longer-term yields higher. That episode does not predict this week; it demonstrates that the sign of a Fed move does not determine the next mortgage-rate print by itself.5

What a quarter-point mortgage-rate change would cost

The table below is a payment-sensitivity exercise, not a prediction about the Fed. It moves the mortgage rate 0.25 percentage point below and above Freddie Mac’s latest 6.76% average while keeping every other assumption fixed. A quarter-point Fed move does not imply a quarter-point mortgage move.15

For the $300,000 example, moving from 6.76% to 7.01% adds $50.13 to monthly principal and interest. For the $400,000 example, it adds $66.85. Moving down to 6.51% lowers the payments by $49.61 and $66.15, respectively. The changes are not perfectly symmetrical because mortgage payments follow an amortization formula rather than simple interest.6

These examples assume a fully amortizing fixed-rate loan with 360 monthly payments and no extra principal. They include only principal and interest. Property taxes, homeowners insurance, mortgage insurance, homeowners-association charges, fees, points and closing costs are excluded. A borrower’s total monthly payment and cash to close can therefore change even if the note rate is identical.6

Should you lock a mortgage rate before the Fed meeting?

There is no universal yes-or-no answer. A rate lock protects a quoted rate from an increase before closing, subject to its term and conditions. Waiting leaves the borrower exposed to market movement in either direction. The useful decision is not whether you can predict the Fed; it is whether the current offer works for your budget, how long remains before closing and what the lender charges for the lock, an extension or any float-down feature.7

The Consumer Financial Protection Bureau recommends comparing multiple Loan Estimates. Keep the loan amount, term, loan type and timing aligned, then compare the interest rate, monthly principal and interest, mortgage insurance, origination charges, lender credits, cash to close and the “In 5 years” figures on page 3. APR is broader than the interest rate because it incorporates the rate plus points, broker fees and certain other charges, but it still should not be used alone.68

What to watch after 2 p.m. Eastern on September 16

Start with the Fed’s published statement, then separate it from market reaction. A changed federal funds target answers what the committee did to an overnight policy rate. The 10-year Treasury’s response helps show how investors changed their longer-term expectations. Lender quotes show the borrower-facing result after mortgage-market spreads and lender pricing are added. Those three observations may move in the same direction, but they answer different questions.35

Freddie Mac’s next weekly release will provide another useful benchmark, but it will still be an average of selected applications rather than a live, universally available offer. Borrowers with an active purchase contract should use same-day Loan Estimates and their closing timetable—not a national average or a prediction—to compare the cost of locking, waiting or changing lenders.1267

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