The following links provide access to indices used to set mortgage rates.
Prime Rate and Weekly and Monthly Average Yield on U. S. Treasury Securities
The Weekly Average Yield on U.S. Treasury Securities can also be found in the Wall Street Journal in the Money and Investing Section under Key Interest Rates.
The Monthly Average Yield on U.S. Treasury Securities can also be obtained from the Federal Reserve Library at 617.973.3397. The Monthly Average Yield rates are available on the 1st Tuesday of each month.
Consumer Price Index
FHFA Monthly Interest Rates