Right now, the temp is about 70 degrees, but there's a chance the lake can "turn over" bringing the deep, colder water to the surface. There are parts of Lake Huron that are still really cold.

Here's your suface temp map: Southern Lake Huron Water Temps

Caseville is pretty shallow, though. The max depth in the racing area is about 40 feet. Most of it's less than 20. It'll warm up quick if the lake turns.

BTW, early ($50 off) registration ends in 3 days (August 1).