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Things to Do in Boise in May 2026: Events, Concerts, Races & More

Mike Brown Group

May Events in Boise, Idaho: Your Complete Guide to What’s Happening in 2026

Boise’s top May 2026 events include the Famous Idaho Potato Marathon (May 16), Mother’s Day brunches at Peaceful Belly Farm and Zoo Boise (May 10), Cinco de Mayo celebrations at Indian Creek Plaza (May 5), the Idaho Outdoor Expo (May 2–3), and dozens of live music shows and weekly farmers markets running every Saturday.

Looking for things to do in Boise, Idaho this May? You’ve come to the right place. From Mother’s Day brunches and Cinco de Mayo celebrations to live music, farmers markets, and outdoor races, Boise and the greater Treasure Valley — including Nampa, Meridian, Eagle, and Caldwell — are packed with events all month long.

Whether you’re a local planning your weekends or a visitor looking for the best things to do in Boise, Idaho in May 2026, this guide covers every major event happening across the Treasure Valley area — including family-friendly festivals, arts and entertainment, stay-active opportunities, and community gatherings you won’t want to miss.

Boise, Idaho in May means the weather is warming up, the outdoor venues are buzzing, and the community is out in full force. Here’s everything you need to know about May events in Boise and the surrounding Treasure Valley — organized by category so you can find exactly what you’re looking for.

Mother’s Day

What are the best Mother’s Day events in Boise, Idaho in 2026?

Peaceful Belly Farm Mother’s Day Brunch

Peaceful Belly Farm Mother’s Day Brunch (11AM Seating) – Sunday, May 10 at 11am | Boise, Idaho

Peaceful Belly Farm Mother’s Day Brunch (3pm Seating) – Sunday, May 10 at 3pm | Boise, Idaho

Celebrate Mom with a relaxing Mother’s Day Brunch surrounded by the natural beauty of Peaceful Belly Farm. Enjoy a thoughtfully prepared brunch in a serene farm setting—an opportunity to slow down, savor good food, and spend meaningful time together. It’s a heartfelt way to honor the moms who nurture and inspire us.

More Mother’s Day Events in Boise and the Treasure Valley

Cinco De Mayo

What Cinco de Mayo events and celebrations are happening in Boise in 2026?

Indian Creek Plaza Cinco de Mayo

Indian Creek Plaza Cinco de Mayo – Tuesday, May 5 from 5pm-9pm | Caldwell, Idaho

Join the celebration at Indian Creek Plaza for a lively Cinco de Mayo event filled with music, energy, and community spirit. Enjoy a vibrant atmosphere as the plaza comes alive with festive flair—perfect for gathering with friends and family to celebrate culture, food, and fun in the heart of downtown.

More Cinco de Mayo Events in Boise and the Treasure Valley

Stay Active

What festivals and events are happening in Boise, Idaho in May 2026?

Famous Idaho Potato Marathon

Famous Idaho Potato Marathon – Saturday, May 16 | Boise, Idaho

Lace up for Idaho’s most iconic race at the 2026 YMCA Famous Idaho Potato Marathon. Runners of all levels are invited to experience scenic routes, incredible community support, and a race-day atmosphere that’s as fun as it is inspiring—all celebrating Idaho’s famous spud.

More Stay Active Events in Boise and the Treasure Valley

Festivals & Events

What festivals and evernts are happening in Boise, Idaho in May 2026?

Idaho Outdoor Expo

Idaho Outdoor Expo – Saturday–Sunday, May 2–3 | Garden City, Idaho

The Idaho Outdoor Expo is a vibrant, two-day celebration of Idaho’s outdoor lifestyle, bringing together the people, gear, and experiences that make exploring this region unforgettable. From fishing, hiking, hunting, and paddling to discovering new destinations and outdoor-inspired products, attendees can shop, learn, and connect directly with the experts who live and breathe adventure. It’s the perfect place to get inspired, discover something new, and plan your next great Idaho outing—all in a fun, community-driven atmosphere.

More Festivals & Events in Boise and the Treasure Valley

Farmers Markets

What farmers markets are open in Boise and the Treasure Valley in May 2026?

Boise Farmers Market

“Boise, Idaho, USA-August 11, 2012: Farmers Market in downtown. Shoppers getting ready to buy fresh produce that are locally grown”

Boise Farmers Market – Every Saturday from 9am-1pm | Boise, Idaho

Experience the best of local at the Boise Farmers Market, where the community comes together to enjoy fresh, seasonal produce, locally raised proteins, artisan breads and pastries, honey, coffee, and ready-to-eat foods. It’s a vibrant weekly gathering that celebrates local farmers, makers, and the flavors of Idaho.

More Farmers Markets in Boise and the Treasure Valley

Arts & Music

What concerts and live music events are happening in Boise, Idaho in May 2026?

Grateful

Grateful – Saturday, May 16 at 9pm | Boise, Idaho

GRATEFUL is a Boise based tribute band paying respect to the legacy of the Grateful Dead. Each performance is arranged with the intent to capture the natural authenticity of the Grateful Dead’s live performance, and “perfectly flawed” delivery in sound, style, and feel. No set list is the same, and no song is played the same way twice. Each member of GRATEFUL recreate the persona of a band that meant so much to so many.

More Arts & Music Events in Boise and the Treasure Valley

May 2026 is one of the most event-packed months on the Boise, Idaho calendar. Whether you’re searching for Mother’s Day brunches in Boise, Cinco de Mayo celebrations in the Treasure Valley, live music near Boise, family-friendly festivals in Nampa and Meridian, or outdoor races and 5Ks in Idaho, this guide has everything you need to plan your month. If you’re visiting Boise, Idaho in May 2026, there’s never been a better time to come.

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