Take it to the bank that because waters are now warming, it is time to go deeper or look for the coolest locations available in any still water location you fish. Fish will go deep looking for better concentrations of dissolved oxygen. It’s a good idea to have a reliable thermometer available when you visit a still water. Check water temperature a bit below the surface. When you see temperatures above the low to mid 60s, don’t expect the best fishing such location can offer. Late and especially very early in the day may be exceptions if water gets cooler.