It's mid-July. The daytime surface temperatures typically reach 75 to 80 degrees, often exceeding that. Summer peak is on. Consequently, the daytime fishing efforts aren’t paying off, as the biggest largemouths congregate along the deepest edges, lay low, and are lounging around comfortably in the better oxygenated deeper waters. Struggle can be the norm for midday fishing. Time is best spent elsewhere, as oppressive heat and sun exposure delivers some of the most challenging fishing conditions of the year. However, these conditions will help deliver the best trophy largemouth fishing of summer if you’re willing to get out of bed very early. Warm overnight lows, high dew points and humid nights aid in stimulating largemouth bass appetites the following morning. For this window of opportunity, you need heat. The hotter and humid, and more repetitive each day becomes, the better and more predictable the morning bite gets. More than just heat is needed, however. You have to be on the right, fertile waters loaded with food and hosting hungry largemouths. For this seasonal pattern, I favor heavily vegetated mesotrophic and eutrophic lake types.