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Mortgage Rates: Freddie Mac Says 6.66%, a Popular Daily Tracker Says 6.55%

Freddie Mac's weekly survey put the 30-year fixed rate at 6.66% for the week ending August 27, essentially unchanged. A separate daily tracker showed the same loan type at 6.55% on August 30. Here's why the two disagree.

Meridians Money Desk

Published 31 August 2026 · Updated 31 August 2026 · 4 min read

Mortgage Rates: Freddie Mac Says 6.66%, a Popular Daily Tracker Says 6.55%Finance
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The short answer

  • Freddie Mac's Primary Mortgage Market Survey, published August 27, 2026, put the average 30-year fixed rate at 6.66%, up just 1 basis point from the prior week; the 15-year fixed rate rose 3 basis points to 5.98%.
  • A separate daily rate tracker cited by Yahoo Finance showed the 30-year fixed rate at 6.55% on August 30, up 18 basis points week-over-week by its own methodology, while its 5/1 ARM reading fell 48 basis points to 6.26%.
  • The gap between the two numbers comes down to methodology: Freddie Mac surveys lenders on rates for well-qualified borrowers with fees and points included, averaged across the week, while daily trackers pull real-time rate-lock data that can move faster and reflect a different borrower mix.
  • The Mortgage Bankers Association expects rates to hold between 6.6% and 6.7% through year-end; Fannie Mae's forecast is slightly higher, at 6.7% to 6.8%.

If you checked two mortgage rate sources this weekend, you may have seen two different numbers for the same 30-year fixed loan. That's not a mistake — it's a look at how differently mortgage rates get measured.

The official number: 6.66%

Freddie Mac's Primary Mortgage Market Survey, the closest thing the industry has to an official benchmark, put the 30-year fixed rate at 6.66% for the week ending August 27, 2026 — up just 1 basis point from 6.65% the week before. The 15-year fixed rate rose 3 basis points to 5.98%. Freddie Mac's own summary: mortgage rates "changed little this week."

The daily number: 6.55%

A separate daily tracker cited by Yahoo Finance showed the 30-year fixed rate at 6.55% as of August 30 — lower than Freddie Mac's figure, but up 18 basis points from where that same tracker stood a week earlier. Refinance rates on the 30-year came in at 6.51%, and the 5/1 adjustable-rate mortgage fell 48 basis points to 6.26%.

Why the numbers don't match

Freddie Mac surveys lenders about rates offered to borrowers with strong credit and a 20% down payment, averages responses across the week, and includes points and fees. Daily trackers instead pull real-time rate-lock data, which can swing faster on any given day and reflect a broader mix of borrowers and loan terms. Neither number is wrong — they're measuring slightly different things.

Where rates go from here

Forecasters aren't expecting big moves. The Mortgage Bankers Association projects rates holding between 6.6% and 6.7% through the end of 2026; Fannie Mae's outlook is a touch higher, at 6.7% to 6.8%. Both groups point borrowers hoping for meaningfully lower rates toward improving their own financial profile — credit score, down payment, debt load — rather than waiting.

Sources

Every factual claim above is traceable to these documents. Check them — that is why they are here.

About this byline

Meridians Money Desk is an editorial desk at Meridians, not an individual. A desk byline means the article was produced and fact-checked to that desk's published standards. Read our editorial standards and corrections policy.

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