Treefort Music Fest
Music festivalBest for: New and indie music; 554 bands in 2026, 246 of them local
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Annual events by month and what's on this week
By J&H Digital Services LLCChecked Oct 23, 202612 sources
In short
The big annual events are Treefort Music Fest (March 31 to April 4, 2027), the Snake River Stampede in Nampa (June), the Boise Twilight Criterium (July), the Western Idaho Fair and Caldwell Night Rodeo (August), and the Spirit of Boise Balloon Classic and Art in the Park (September). For this week's events, check Visit Boise, your library's calendar and BoiseDev.
- Next Treefort
- March 31 to April 4, 2027, downtown Boise
- Busiest month
- August to mid-September: fair, rodeo, balloons, Art in the Park
- Free favorites
- Art in the Park, balloon launches, Twilight Criterium (watching)
- This week
- Visit Boise events calendar and library calendars
What are the big Boise events each month?
| Month | Event | Where | Recent or next dates |
|---|---|---|---|
| March or April | Treefort Music Fest: hundreds of bands plus film, comedy and talks | Downtown Boise | March 31 to April 4, 2027 |
| June | Snake River Stampede: pro rodeo | Ford Idaho Center, Nampa | June 16 to 20, 2026 |
| Late June to Labor Day | Float the Boise season | Barber Park to Ann Morrison Park | June 20 to Sept. 7, 2026 |
| July | Boise Twilight Criterium: evening pro bike races on a downtown loop | Downtown Boise | July 11, 2026 |
| Late July | San Inazio Basque festival | Basque Block, downtown Boise | July 30 to Aug. 1, 2027 |
| August | Western Idaho Fair: rides, livestock, food and concerts | Expo Idaho, Garden City | Aug. 21 to 30, 2026; Aug. 13 to 29, 2027 |
| August | Caldwell Night Rodeo: five nights of pro rodeo | Caldwell | Aug. 18 to 22, 2026 |
| Early September | Spirit of Boise Balloon Classic: morning launches and Nite Glow | Ann Morrison Park, Boise | Sept. 2 to 6, 2026; Sept. 1 to 5, 2027 |
| September | Art in the Park: about 240 artists, free | Julia Davis Park, Boise | Sept. 11 to 13, 2026 (weekend after Labor Day) |
| Late Nov. to Dec. | Winter Garden aGlow: more than 850,000 lights | Idaho Botanical Garden, Boise | Late November through December |
| About every five years | Jaialdi: international Basque festival | Downtown Boise | Last held July 29 to Aug. 3, 2025; next date not yet announced |
Dates change each year. Confirm on the event's own site before you plan. Source: Event websites listed below
Where can I find what's on this week?
Type
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Snake River Stampede
Pro rodeoBest for: Big-arena rodeo in June
Boise Twilight Criterium
Bike raceBest for: A summer evening downtown with kids' races
Western Idaho Fair
County fairBest for: Families; the fair is closed Mondays and Tuesdays starting in 2027
Caldwell Night Rodeo
Pro rodeoBest for: Night rodeo with a lively crowd
More
- Popular nights sell out
Spirit of Boise Balloon Classic
Hot air balloon festivalBest for: Early risers and kids
More
Flights depend on the weather. Launches start around dawn.
Boise Art Museum: Art in the Park
Art fairBest for: Shopping local art, free entry
San Inazio (Basque Center)
Basque festivalBest for: Basque food, dance and music each summer
Was this page helpful?
Sources (12) · Checked Oct 23, 2026
- Treefort Music Fest: 2027 dates
- Idaho News 6: Snake River Stampede 2026 guide
- Idaho News 6: Western Idaho Fair to span three weekends in 2027
- KBOI: Boise Twilight Criterium returns July 11
- Caldwell Night Rodeo
- Boise Mom: Spirit of Boise Balloon Classic 2026
- Spirit of Boise Balloon Classic
- Boise Art Museum: Art in the Park
- Basque Center: Jaialdi
- Basque Center
- Idaho Botanical Garden: Winter Garden aGlow
- City of Boise: 2026 float season
Fees, rules and providers change. Confirm with the official source before you go.
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