09/01/2026
Pool days are out. Festival season is very much in. 🎈
The Spirit of Boise Balloon Classic takes over Ann Morrison Park September 2–6. Three major festivals collide in Boise's North End the weekend of September 18–20. Oktoberfests pop up across the valley as the weather finally cools. Add a packed concert calendar, farmers markets, and family events — and September might just be the most fun month to be outside in the Treasure Valley all year.
Your complete September 2026 events guide is live. Go make some plans.
🔗 https://loom.ly/fiqjGH8