1. Spirit of Boise Balloon Festival

9/2-9/6

Ann Morrison Park, Boise

2. 23rd Annual Indian Creek Festival

9/18-9/19

Indian Creek Plaza, Caldwell

3. Lowe Family Farmstead Opening Weekend

9/12

2500 S. Eagle Rd, Kuna

4. Hyde Park Street Fair 

9/18-9/20

Hyde Park, Boise

5. Potato Days 

9/25-10/4

Boise & Meridian

• Idaho Shakespeare Festival: The Heart of Robin Hood

9/4-9/27

5654 Warm Springs Ave, Boise

• 2026 Summer Music Festival Indoor Concerts in Boise

9/5

Cathedral of the Rockies, Boise

• 2026 Summer Music Festival Outdoor Concerts in Eagle

9/6

Château des Fleurs, Eagle

• Behind the Scenes – Brunch & Learn

9/11

516 S. 9th St, Boise

• Season Opener: The Four Seasons

9/14

Egyptian Theater, Boise

• Eagle Jazz & Blues Fest

9/18-9/19

Eagle

• The Rock Orchestra by Candlelight

9/19

Morrison Center, Boise

• Boise State University Department of Music – Symphony Orchestra

9/23

Morrison Center, Boise

• Eagle Concert Series

9/24

Heritage Park, Eagle

• Kuna Stampede Rodeo

9/3-9/5

Kuna

• The Sunnyslope Wine Festival

9/6

Ste. Chapelle Winery, Caldwell

• Taste of Caldwell Harvest Festival

9/6

Indian Creek Plaza, Caldwell

• Art in the Park

9/11-9/13

Julia Davis Park, Boise

• 2026 Juniper Market Street Fairs

9/12

The Village at Meridian

• Boise Fall Festival

9/13

Center Expo Building, Garden City

• Taste of Idaho

9/15

Idaho Center Plaza, Nampa

• Athletic Club Boise vs. Charlotte Independence

9/16

Athletic Club Boise Soccer Stadium

• Xtreme Barrel Race

9/16-9/20

Ford Idaho Center, Nampa

• Boise Scottish Heritage Festival

9/19-9/20

Carnival Grass, Garden City

• Treasure Valley Roller Derby

9/19-9/20

South Expo Building, Garden City

• Classic British Car Show

9/20

The Village at Meridian

• Zoo Know It All? (21+ trivia)

9/24

Zoo Boise

• Treasure Valley Veterans Stand Down

9/25

Ford Idaho Center, Nampa

• State Horse Show

9/25-9/27

Ford Idaho Center, Nampa

• Snake River Reining

9/25-9/27

Ford Idaho Center, Nampa

• Old Boise Oktoberfest

9/26

Downtown Boise @ 6th & Grove

• Oktoberfest

9/26

Nampa Civic Center

• Open Streets Boise

9/27

Boise

• Wild After 5:00 (all ages)

9/1

Zoo Boise

• World Village 

9/11-9/12

Boise

• Kids Discovery Expo

9/12

South Expo Building, Boise

• Space Day

9/12

Nampa Civic Center, Nampa

• Family STEM Night

9/15

Garden City Public Library

• Adaptive Evening at the Zoo presented by Accel Therapies

9/17

Zoo Boise

• International Red Panda Day

9/19

Zoo Boise

• Kids in Aviation Day

9/26

Payette Airport

• The Big Bounce America

9/26-9/27

Expo Idaho, Garden City

• 9/11 Miles of Remembrance

9/11

Ann Morrison Park, Boise

• Tobin Bolter Memorial Kids’ Duathlon

9/12

Ada Eagle Bike Park, Eagle

• TVDSA - Step Up for Down Syndrome

9/12

Indian Creek Plaza, Caldwell

• 42nd Annual Harvest Classic Fun Run

9/12

Liberty Park, Nampa

• ISU’s 9/11 Memorial Stair Climb

9/13

JUMP, Boise

• Scramble for the Kids - Benefiting St. Luke’s Children’s Hospital

9/18

Shadow Valley Golf Course, Garden City

• FitOne 5K, 10K, & Half Marathon

9/26

Boise

• Boise Farmers Market

Saturdays 9:00am-1:00pm

Boise

• Capital City Public Market

Saturdays 10:00am-2:00pm

Boise

• Eagle Saturday Market

Saturdays 9:00am-1:00pm

Eagle

• Meridian Main Street Market

Saturdays 9:00am-1:30pm

Meridian

• Meridian Monday Night Market

Mondays 4:00pm-9:00pm

Meridian

• Nampa Farmers Market

Saturdays 9:00am-1:30pm

Nampa

• 208 Night Market

Fridays & Saturdays 6:00pm-11:00pm

Nampa

• Caldwell Farm to Fork Farmers Market

Tuesdays 5:00 pm-8:00 pm

Caldwell