For anyone thinking about buying a house or doing a refinance now is a great time. Rates have dipped significantly. If you keep an eye on the 10yr treasury bond you can spot the mortgage rate trend. If the bond yield increases then rates will trend higher and vice versa. The bond has been as high as 2.62% this year and is currently at 2.15% which is the lowest its been since 10 Nov 16.
If you're thinking about doing a refi you can look at the long range charts to see what the bond was when you bought and if its lower now you could save some money. I do a lot of no cost refi's which lowers your rate/payment and my company will pay the closing costs. Here is the bond chart:
https://finance.yahoo.com/quote/%5ETNX/
Let me know if I can help you in any way.
Fly safe!
Marty