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Jun 18, 20261
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U.S. Mortgage Rates Fall to 6.47% as Treasury Yields Decline Following Iran War Deal
The 30-year U.S. mortgage rate fell to 6.47% this week, with the 15-year rate dropping to 5.81%, as Treasury yields declined following an announced deal to end the Iran war.
Quick Facts
Who
Freddie Mac
What
30-year mortgage rate decreased
When
Week of June 18, 2026
Where
United States
- 30-year mortgage rate decreased
- 15-year mortgage rate decreased
- Treasury yields retreated
- Iran war deal announced
- Freddie Mac
The average long-term U.S. mortgage rate declined this week as Treasury yields retreated following an announcement of a deal to end the war with Iran. According to mortgage buyer Freddie Mac, the benchmark 30-year fixed-rate mortgage fell to 6.47% from 6.52% the previous week, continuing a gradual downward trend from 6.81% one year ago.
Borrowing costs for 15-year fixed-rate mortgages, commonly used by homeowners refinancing existing loans, also declined during the period. The 15-year rate dropped to 5.81% from 5.84% the prior week, compared with 5.96% a year earlier. The decline reflects broader market movements as geopolitical tensions eased with the reported Iran conflict resolution.
The movement in mortgage rates closely tracks fluctuations in Treasury bond yields, which serve as a key benchmark for the housing market. Lower Treasury yields typically translate into reduced borrowing costs for consumers seeking mortgages. The modest weekly improvements suggest continued relief in the mortgage market as international tensions ease.
Why This Matters
Declining mortgage rates directly lower borrowing costs for homebuyers and refinancers, making homeownership more affordable. This rate drop reflects reduced geopolitical risk premiums in Treasury markets, signaling potential long-term stability in housing affordability. For prospective borrowers and current homeowners considering refinancing, a 6.47% rate represents meaningful savings compared to rates above 6.81% from a year ago—translating to thousands of dollars in lower annual interest payments on a typical mortgage.
Timeline & Sources
Jun 18, 2025
WireOne year prior baseline: 30-year mortgage at 6.81%, 15-year at 5.96%
Jun 17, 2026
WirePrevious week: 30-year mortgage at 6.52%, 15-year at 5.84%
Jun 18, 2026
WireIran war deal announced; Treasury yields retreat
Jun 18, 2026
WireCurrent week: 30-year mortgage falls to 6.47%, 15-year to 5.81%
Jun 19, 2026
WireFreddie Mac releases mortgage rate data on Thursday