On September 15, 2025, mortgage rates in the U.S. have shown mixed movement but a general upward trend, with the national average 30-year fixed mortgage rate increasing to 6.56%, up 11 basis points from last week’s 6.45%, according to Zillow. Refinancing rates followed a similar pattern: the 30-year fixed refinance rate increased to 6.75%, while the 15-year fixed refinance rate decreased to 5.50%. These shifts reflect a complex economic backdrop, including cooling labor market figures, Federal Reserve monetary policy expectations, and inflation trends.

 

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Today’s Mortgage Rates – September 15, 2025: Rates Jump Across the Board