Mortgage rates today: Should you choose a 6.35% ARM or 6.57% fixed mortgage?

Mortgage rates are mixed today, August 27, 2026, with some rates rising and others falling. The 5/1 adjustable-rate mortgage (ARM) has become cheaper, dropping to 6.35% from 6.57% yesterday. Meanwhile, the 30-year fixed mortgage rate increased by 4 basis points to 6.57%. This creates a decision for homebuyers: should they choose the lower ARM rate or pay more for the stability of a fixed mortgage?

The ARM has a fixed rate for the first five years and can fluctuate after that based on market conditions. The fixed rate, however, remains locked for the entire loan term, providing predictable monthly payments. Homebuyers need to consider their expected length of stay in the home, comfort with potential rate changes, and financial ability to handle higher payments if the ARM adjusts upward.

Factors to weigh include the starting interest rate, monthly payment, fixed period, adjustment schedule, and rate caps. The ARM might be suitable for those planning to sell or refinance before the five-year fixed period ends. The fixed mortgage can be ideal for buyers wanting long-term payment predictability. Ultimately, comparing both offers side by side – including the initial rate, monthly payment, fixed period, adjustment frequency, and caps – will help buyers make an informed decision.