Oh the Summer Peak Period (Water temps reach mid 70s) is one of the best times of years to put those fish with the biggest teeth in the net! With the warmer water temps the muskie's metabolism also rises which means they have to feed more often to sustain a diet. That means fish are active more times throughout the day giving you, the angler, more chances at casting your lure past the top of the line predator.
If you have read anything about chasing muskies in Minnesota Leech Lake is always one that is on top of the list. There is hundreds upon thousands of spots to fish. The first thing I always track as a fishing guide on the lake is the bite in the weeds or rocks going? If the weed bite is strong there are many great long shoreline stretches to focus on. I spend hours searching on flat calm sunny days looking for fresh cabbage growth. I mark them out by utilizing my GPS on my Lowrance. I literally know exactly where my lure is landing with each cast. If the rocks are hot I will then focus on the main lake rock points and mid lake structure. Doing the same on calm days I have had these spots marked out for years and unlike the weedgrowth they don't change from year to year.
My go to lure in the summer months is a bucktail. Last season with no doubt, especially on calm days, we caught way more muskies on smaller bucktails, like my favorite, the Bigtooth Tackle JUICE Mini. If the wind is rockin we sometimes would up the blade size to the JUICE Mag 8 or 10. I have two favorite colors the "Halo" and "Honey Bear" color. They are as natural of a color as it gets.
One other tip is that we caught several fish, even in flat calm days, during the middle of the day last year. I think with the given pressure during key times, like sunrise and sunset, fish would get pushed off of the community spots. Stick with it and keep casting to good spots!