Big Sky Festival In Montana 2025 Schedule. Under the big sky celebrates the tradition of gathering friends and family together under open skies to listen to music. Tyler childers, mumford & sons, and the red clay strays will headline the festival.

Whitefish — the lineup for one of montana’s biggest music festivals is here and another round of great acts is set to play at whitefish’s big mountain ranch next summer. Your 2025 under the big sky festival lineup is here.