
Mortgage Rate Watch: Week of March 21, 2026
Mortgage rates climbed across all three major loan types during the week of March 21, 2026, with the 30-year fixed rising to 6.38%, the 15-year fixed reaching 5.75%, and the 5/1 ARM hitting 6.06%. A 10-Year Treasury yield of 4.42% and a Federal Funds Rate of 3.64% are key factors shaping where rates stand today. Homeowners considering a refinance should weigh current market conditions carefully and use available tools to estimate whether refinancing makes financial sense at current rates.


