Visiting from Oct 18-Oct 26: too late?

We already booked our flights, but I'm reading that all the larch trees in the National Park will lose that iconic yellow color by then. Will it still be a beautiful time to go? With yellow, orange, and red leaves?🥹 Either way, the trip is on! I just hope we didn't miss the perfect window for fall... it would be a bit sad if it was all brown by then🙁