When the weather gets hot an option is to drive to the high country (4000 feet+) and paddle one of the lakes, then go for one of the hikes nearby. On this blue sky hot day, I paddled twice around Stake Lake, then hiked a snowshoe route nearby. It was an early morning start and winds are usually calm until late morning in our area. There was no one else on the lake.
Across the Lac le Jeune Road is a series of open marshes and a number of double tracks can be hiked or snowshoed, linked into a loop, although some route-finding is required. The marsh reeds were starting to turn colour in late summer.
Going into the high country offers some relief from the hot summer sun, especially if combined with an early start and a forested route. Paddling and hiking in the middle of the day in open areas is best left to shoulder seasons.