I don't listen to radio or TV. For an accurate temperature I simply read the face of my Lowrance. On my last trip it varied from 58.8 to 62.2. These are surface temps. Some day I'll buy a deep water gauge. In the meantime, I can live with what I have and be happy as I will testify when I am on the lake tomorrow with my longtime fishing friends. Ch. 79 or 68.