Last updated: May 21, 2026

30-Year Mortgage Rate Hits Six-Month High at 6.37% as Spring Buying Season Begins

Mortgage rates climbed sharply this week, with the 30-year fixed rate reaching 6.37% as of March 25, 2026 — its highest level in six months, according to CBS News and Zillow data. The 15-year fixed rate also rose to 5.87%, while refinance rates jumped even more dramatically.

Refinance Rates Spike

The refinance market took the biggest hit. The 30-year refinance rate surged to 7.04%, up 32 basis points from the previous week, according to Norada Real Estate. The 15-year refinance rate now sits at 6.04%. For homeowners who were waiting to refinance, the window may be narrowing.

What Is Driving Rates Higher?

Several factors are pushing rates up heading into spring. Persistent inflation concerns, mixed economic signals, and uncertainty around trade policy are all contributing to upward pressure on Treasury yields — which directly influence mortgage rates.

Forbes Advisor noted this marks the first sustained rate increase after months of gradual declines since Q4 2025, when the 30-year average hovered around 6.18% for the first two months of 2026.

A Mixed Signal for Buyers

The timing is challenging. Spring is traditionally the busiest home-buying season, and higher rates mean higher monthly payments. A buyer purchasing a $400,000 home at 6.37% would pay roughly $80 more per month compared to the 6.10% rate MBA forecast for year-end 2026.

However, rising inventory in many markets — now 5.6% above year-ago levels according to CNBC — could help offset some of the rate pressure by giving buyers more negotiating power.

What Buyers and Homeowners Should Do

For buyers actively shopping, locking in a rate sooner rather than later may make sense if rates continue their upward trend. Freddie Mac research shows that homebuyers who apply with multiple lenders can save between $600 and $1,200 annually.

Homeowners considering tapping their equity should also pay attention. HELOC rates are variable and tend to follow short-term rate movements, while home equity loans offer fixed rates that provide payment certainty.

Reviewed by Jordan Reyes, CFP®. Jordan Reyes, CFP®, is a certified financial planner with 12 years of experience in consumer borrowing, debt repayment, and credit-building strategies. Last reviewed May 2026.