(Saturday, May 27th)
Why? Majority of U.S. banks are open on Saturday for limited hours.
Are the banks open tomorrow? (Sunday)
Why? Majority of U.S. banks are closed Sundays, however banks may be open Sundays, often with limited hours. It is up to the bank and even the individual branches.
Need to know if the post office is open today? Visit PostOfficeOpen.com