Well rates have been going up this week, with some threats of inflation pending and oil prices higher, the rates are still pushing up.
I still think they will come back down, but it may be fall before we see a break under 6% again. So, if you are buying a home right now to take advantage of the low prices in the market, you would be better to lock. If you are building a house, you may be able to float for a few months and wait out the rates.
If you are refinancing, I would recommend a point or two to buy the rate down and get yourself safely low so you don't have to worry again for the next year.