Some times we think it's all about us here on planet earth, but the fauna exhibits some of our behavior. On hot days some of us will sit in the air conditioning, if you have it. Some will work in the basement if you don't have it. Or what I call the "Alpena Patio" sit in the cool garage sipping lemonade among other refreshments. When it it is hot humans eat and move less.
Trout are the same...they sit in deep, cool spring fed holes or under the bank of the river. They don't move, Sunday night the water temps reached 66 F and were still rising at 8 pm. The Brook trout were not active. The rainbows who will feed into the river temperatures of low 70sF and were biting a little. We have another 24 hours before the night temps drop back down into the 50sF and day temperatures level off at the middle to low 70sF. The weather man has been threatening us with thunderstorms, but many of them have not developed. With the Hex hatch knocking on the river doors here in the north of Michigan, I hope some of those clear cool evenings will be upon us. The Maple, Sturgeon, Pigeon, Black are all at good levels and some rain wouldn't hurt them at all.
Hot weather creates a few more issues to endure. Remember Brookies, Browns and Rainbows all have heat stress limits...66F, 68F, 70F respectively (approximately), so hands on the thermometer, take the water temp, and if the heat is there search out deep water that is spring fed and in the shade. However if the heat can't be beat and it lingers for a week...fly fishing small lakes for Bass and Bluegills; it's fun!
Richard and Jim
Letting you know current conditions and best approaches.