Everyone wishes for a crystal ball. I have the only answer about interest rates: they will go up and they will go down. There are two things to watch for when you need real estate financing. The longer, macro trend and the short oscillation in rates due to market conditions.
To make this simple: the stock market experiences irregular days when the sky seems to be falling. Those are usually great days to lock a rate.
My crystal ball predicts continuing volatility for, at least, the short terms. If you are contemplating a purchase, a longer lock at a satisfactory rate is good insurance, For refinance, get all your paperwork in, get an approval, and watch for a good day to lock. Ask yourself: will I feel worse if I lock and rates go down, or will I feel worse if I don’t and rates go up? Then, do the opposite.