Spring time fishing for small mouth bass can be found on top water. Small mouth bass like warmer water. Prime spawning for smallies is between 62 & 64 deg. If you get a fast drop in temps the males will pull off there beds. Good steady warm temps are best for Small mouth spawn. Normal spawn in northern Minnesota is around June 1st. This year with our early ice out Smallmouth spawn could be as early as May 15th.