Then God commanded November to brighten the sky and to mitigate the air for the entire duration of Martin's travel. And since God does not rescind his orders, the first days of November are always cheered by a warm sun. We call this season Indian Summer. LinkIf one is not inclined to the sacred, there is always the profane redeemed:
According to Robby Krieger, "Indian Summer" was the very first song The Doors ever recorded, in 1966. The version everyone knows was released in 1970 on Morrison Hotel.