For the most part, the day looks promising along the path of totality. Even in the areas with a disheartening forecast, there's reason for a bit of optimism. "A single thunderstorm won't last long enough to affect the entire two- to three-hour viewing period of the eclipse in any given area," Weather.com notes. "However, one of these stray thunderstorms could be so poorly timed it occurs over part of the area seeing an eclipse for the roughly two- to three-minute period of totality."
Hopefully, the day is clear for everyone at their peak time. If not, that's probably the one exception to Neil deGrasse Tyson's proclamation that "there's no excuse" to miss the eclipse.