An island city in Lake Washington.
Photo: Joe Mabel, CC BY-SA 3.0Source
Sunday is the farmers market, with family storytime the same morning. The market's last Sunday is Oct 11. Oct 15 is an all-ages plant walk at Pioneer Park, and Youth Theatre Northwest opens The Queen in the Cave on November 6.
Upcoming
Events updated Sep 30
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Today
Film Screening: Ultimate Citizens
Mercer Island Library, 4400 88th Ave SE
A documentary screening and a Q&A with filmmaker Francine Strickwerda. For high schoolers and older. The film follows Jamshid Khajavi, an Iranian American mentor.
Tomorrow
Mandarin Story Time
Mercer Island Library, 4400 88th Ave SE
Stories, music, movement, and rhymes for early literacy. A family program, in Chinese and English, and people who want to learn Chinese are welcome.
This weekend
Mercer Island Farmers Market
Sun Oct 4 · 10:00 a.m.–2:00 p.m.
The 2026 season is May 31 through Oct 11, every Sunday, 10:00 a.m.–2:00 p.m. This is not the last one. Next Sunday is the closer.
Family Story Time
Sun Oct 4 · 11:15 a.m.–12:00 p.m.Oct 4, 11:15 a.m.Nov 10, 10:15 a.m.
Mercer Island Library, 4400 88th Ave SE
Stories, music, movement, and rhymes, then play time. Recommended for ages 0 to 5 with an adult.
Later
Building Club
Mercer Island Library, 4400 88th Ave SE
An open building hour. The library supplies the materials and science toys. Ages 4 and older. Ages 4 to 7 need an adult. No registration.
Mercer Island Farmers Market
Sun Oct 11 · 10:00 a.m.–2:00 p.m.
The last Sunday. The season ends Oct 11. Same hours, 10:00 a.m.–2:00 p.m.
Family Story Time
Sun Oct 11 · 11:15 a.m.–12:00 p.m.
Mercer Island Library, 4400 88th Ave SE
Stories and play time for ages 0 to 5 with an adult.
Pumpkin Painting
Mercer Island Library, 4400 88th Ave SE
Paint a mini pumpkin. Materials are provided while they last. Friends of the Mercer Island Library sponsor it. Kids and teens of all ages. Ages 7 and under need an adult. No registration. First come, first served.
Plant ID Walk
Pioneer Park, meet at Island Crest Way and SE 68th St
A walk to learn common plants at Pioneer Park. All ages, and no experience is needed. Register ahead.
Arbor Day at Homestead Park
Sat Oct 24 · 10:00 a.m.–1:00 p.m.
A work party for blackberry removal, planting, and mulch. Snacks, lunch, gloves, and tools are provided. Bring water and clothes that can get dirty. Register ahead.
Night of 1000 Scares
Youth Theatre Northwest, 4400 86th Ave SE
Chaos Theory’s Old Timers, grades 9 through 12, in a public improv night at Youth Theatre Northwest.
Nature Journaling
Tue Oct 27 · 10:00 a.m.–12:00 p.m.
Pioneer Park NW, Island Crest Way and SE 68th St
Draw and write outside at Pioneer Park. All ages, and no experience is needed. Bring a notebook and pens, pencils, watercolors, or crayons.
Town Center Trick or Treat
A free stroll through Town Center in costume. Businesses with the two little ghost posters in the window are the ones handing out treats. The city says the business list keeps growing up to the day, so check the page again that week.
The Queen in the Cave
Youth Theatre Northwest, 4400 86th Ave SE
A world-premiere play from Júlia Sardà’s picture book, performed by Youth Theatre Northwest. Three sisters go into the forest looking for a queen who lives in a cave. Fridays at 7:00 p.m., Saturdays at 2:00 and 7:00 p.m., and Sundays at 2:00 p.m.
Holiday Tree Lighting
A town tree lighting for families at Mercerdale Park.
It’s a Wonderful Life
Youth Theatre Northwest, 4400 86th Ave SE
A radio-play version of the holiday story, performed by Youth Theatre Northwest for grades 5 through 12. George Bailey meets the angel Clarence on Christmas Eve. Friday and Saturday at 7:00 p.m., Sunday at 4:00 p.m.
Holiday Makers Market
Sat Dec 5 · 10:00 a.m.–3:00 p.m.
Mercer Island Community and Event Center, 8236 SE 24th St
A free makers market for families at the Community and Event Center, held with the Mercer Island Chamber of Commerce.
The Nutcracker and the Mouse King
Sat Dec 5 through Sun Dec 13 · Saturdays and Sundays at 2:00 p.m.
Youth Theatre Northwest, 4400 86th Ave SE
Youth Theatre Northwest’s holiday play, with a cast in grades 1 through 8. Grown-up Clara tells her daughter Marie how she met the Nutcracker, from the party and the mouse battle through the lands of snow and sweets.
Chaos Theory
Fri Dec 11 and Sat Dec 12 · 7:00 p.m.Dec 11, 7:00 p.m.Apr 23, 7:00 p.m.
Youth Theatre Northwest, 4400 86th Ave SE
Public improv from Youth Theatre Northwest. Rookies are grades 7 through 9, and Old Timers are grades 9 through 12.
MacBeth
Fri Dec 18 and Sat Dec 19 · 7:00 p.m.
Youth Theatre Northwest, 4400 86th Ave SE
The performance-series cast, grades 5 through 12, in Shakespeare’s Scottish play. Sword fights, ambition, and a bloody ending. Everyone in the series is cast.
Staff vs Students
Youth Theatre Northwest, 4400 86th Ave SE
Chaos Theory’s Old Timers improvise against the Youth Theatre Northwest staff.
Urinetown
Fri Mar 12 through Sun Mar 28, 2027
Youth Theatre Northwest, 4400 86th Ave SE
A satirical musical for grades 8 through 12. A long drought puts toilets under one company, and a hero starts a revolt. Fridays and Saturdays at 7:00 p.m., Sundays at 2:00 p.m., with an added 2:00 p.m. show on Saturday, March 28.
Know something fun in Mercer Island? Suggest an event.