Looking for something fun to do with the kids September 18-20? This weekend brings a street fair in Boise, cardboard boats in Caldwell, insect adventures at the Idaho Botanical Garden, a hometown parade in Shelley, and county-fair fun in Moscow. Pick a nearby outing or build a day trip around one favorite.
Times below are local: Mountain Daylight Time in Boise, Caldwell and Shelley; Pacific Daylight Time in Moscow.
Hyde Park Street Fair: Boise
When: Friday, September 18, 4-9:30 p.m.; Saturday, September 19, 10 a.m.-9:30 p.m.; Sunday, September 20, 10 a.m.-7 p.m.
Where: Camel’s Back Park, 1200 Heron Street, Boise.
Cost: Free walk-in admission; food and shopping are extra.
Explore arts and crafts booths, community displays and live music during this three-day neighborhood celebration. It is an easy choice for families who want to wander and choose their own pace. Allow extra time to arrive: there is no public parking inside the park, and nearby neighborhood parking is limited. Consider walking, biking or transit.
Official Hyde Park Street Fair information
Indian Creek Festival: Caldwell
When: Friday, September 18, 6-9 p.m.; Saturday, September 19, activities begin at 7 a.m. The cardboard kayak race is Saturday, 2-3 p.m.
Where: Downtown Caldwell, centered on Indian Creek Plaza, 120 S. Kimball Avenue.
Cost: Free festival admission; food and optional purchases cost extra.
Watch homemade cardboard boats try to stay afloat, enjoy the car show, and explore downtown together. Saturday’s schedule includes chalk art and 4-H activities from 9 a.m.-1 p.m. Friday has its own music and car-show lineup. The organizer lists different Saturday closing times in different sections, so use the activity schedule to plan your visit.
Official festival schedule and map
Bug Day: Boise
When: Saturday, September 19, noon-5 p.m.; last entry at 4 p.m.
Where: Idaho Botanical Garden, 2355 Old Penitentiary Road, Boise.
Cost: General admission $17 for adults and $13 for ages 4-12; children 3 and under are free. Member discounts are available.
Young nature lovers can investigate insects, try hands-on stations and crafts, and ask bug experts questions. Tickets are limited, so book ahead if this is your weekend’s main outing. The ticket booking page specifies ages 4-12 for youth tickets.
Bug Day in our directory · Organizer information · Tickets and age categories
Idaho Spud Day: Shelley
When: Saturday, September 19; the main parade starts at 10 a.m.
Where: Shelley; follow the organizer’s parade route and event map.
Cost: Check individual activities for prices and registration requirements; a complete admission and activity-price list was not available when checked.
Make a hometown parade the centerpiece of your Saturday. Spud Day brings floats, marching bands and community traditions together for a celebration of Idaho potatoes. The organizer is still updating the full schedule, so check the event pages before planning additional activities around the parade.
Spud Day in our directory · Official parade details and route · Latest full schedule
Latah County Fair: Moscow
When: Friday and Saturday, September 18-19, 11 a.m.-9:30 p.m.; Sunday, September 20, 11 a.m.-5 p.m. The full fair runs September 17-20.
Where: Latah County Fairgrounds & Events Center, 1021 Harold Street, Moscow.
Cost: Free admission. Check separate prices for carnival rides and food.
Browse exhibits, see animals and enjoy entertainment at this Palouse community fair. It offers plenty of different interests in one outing. Some exhibit areas and outdoor vendors close at 9 p.m. Friday and Saturday, ahead of the fair’s closing time.
Official fair information and hours · Venue address
Before you head out
Check the organizer’s latest updates for weather changes, tickets and activity schedules. Bring water, sun protection and a layer for cooler evenings. Free admission does not mean every purchase or activity is included.
Details checked September 12, 2026. Events and prices can change.