You can get a glimpse of the rate and its movements at BankRate.com
Here's the link, http://www.bankrate.com/
It is also a great idea to have a few different mortgage brokers, (from large and small banks, national and Texas banks, and credit unions), in your SOI who email you regular updates on rates and financial news. This will enable you to quickly respond to consumers who inquire about current financial conditions with the most up to date information.
Some of my best buddies in this biz are mortgage brokers! They are an invaluable resource to me!!