Average 30-Year Mortgage Rates Rise to 6.392%;
30-Year Jumbo Surges +0.525
Week Ending March 30, 2026

Fixed rates advanced across conventional and jumbo products while adjustable-rate results were mixed. The 30-year jumbo posted the period's most dramatic move.

📊 Full week-over-week data for all 12 loan products — drawn from 2,557 verified rate quotes collected from 1,498 institutions.

NATIONAL — National mortgage rates moved broadly higher this week, with the benchmark 30-year fixed rate climbing to 6.392% for the week ending March 29, 2026 — an increase of 0.033 percentage points from the prior week's 6.359%. The 15-year fixed rate gained more sharply, rising 0.064 points to reach 6.039%, crossing back above the 6% threshold. The spread between the two flagship fixed products currently stands at 0.353 percentage points.

The week's standout story was the jumbo fixed segment. The 30-year jumbo surged more than half a percentage point to 6.459%, up from 5.934% the prior week. The 15-year jumbo also rose, advancing 0.173 points to 6.085%. Because jumbo loans are held in portfolio by lenders rather than sold through Fannie Mae or Freddie Mac, they reprice independently based on each institution's funding costs and risk appetite — making them acutely sensitive to Treasury yield volatility.

Among adjustable-rate products, the picture was mixed. The 5/1 conventional ARM edged fractionally lower to 6.148%, while the 7/1 ARM ticked up 0.055 points to 6.146%. The 3/1 ARM posted the period's largest decline, falling 0.535 points to 6.039%. While the headline rate appears attractive, rate adjustments begin after just 36 months on this product.

The broad uptick in fixed mortgage rates reflects continued upward pressure on U.S. Treasury yields, driven by persistent inflation uncertainty and an evolving Federal Reserve policy outlook. The Fed held rates steady at its most recent meeting and projected only one potential cut in 2026 — and mortgage markets have responded by pricing in a sustained higher-rate environment across both conventional and jumbo products.

The outsized move in 30-year jumbo rates warrants particular attention for borrowers in the high-balance market. Because jumbo loans are held in portfolio by individual lenders rather than sold through the GSEs, they reprice independently based on each institution's own funding costs, capital position, and risk appetite. Volatility in longer-duration Treasury yields can trigger amplified moves in jumbo pricing, and institution-level rate variation in this category is typically wider than in conforming products — making it especially valuable to compare multiple lenders when shopping a jumbo mortgage.

With the spring homebuying season underway, lender competition may benefit borrowers who actively compare rates. The 30-year fixed at 6.392% and 15-year fixed at 6.039% remain well above early-2020s lows, but below the 7%+ peaks of late 2024.