Graduation- June 9

3/29/2026 2:53 pm

Date: Tuesday, June 9, 2026

Time: 6:30pm - 8:30pm

Location: McCaw Hall - 321 Mercer Street, Seattle, WA 98109

Tickets: Your graduating senior will automatically receive 2 complimentary tickets, and will have the opportunity to purchase up to 3 more. Additional information here: Graduation - Mercer Island High School

Grad Night Party- June 9

3/25/2026 7:11 pm

Class of 2026 Grad Night Party

The Grad Night Party will be a fun filled evening with exciting and engaging activities. There will be something for everyone!  Grad Night is optional; however, we encourage all graduates to attend and celebrate together for one last night as class!  

The Grad Night Party is a 100% alcohol and drug free event to ensure a safe graduation night. 

Who: MIHS class of 2026 graduates! 

Date: Tuesday, June 9 - immediately following graduation

Countdown to Graduation

3/7/2026 3:44 pm

Important Dates to Remember!

Thursday, April 30- Deadline to submit Hours for Community Service Awards. Coordinated by the PTSA

Tuesday, May 26th, 5:00-7:00 PM- PTA Council Community Scholarships Awards Night

Wednesday, May 27th, 7:30-8:30 AM- Athletic Signing Day. This special event is a chance to celebrate MIHS student-athletes' continuing their athletic journey in intercollegiate athletics.

Graduation Caps, Gowns & Tassels

10/8/2025 5:55 pm

Caps, Gowns and Tassels are available for purchase through the Josten's website:

MERCER ISLAND HIGH SCHOOL MERCER ISLAND, WA - Graduation | Jostens

Orders due by Friday, October 17, 2025. If you missed the deadline, reach out to Mike Annis, our Josten's rep- text 206.931.4723 or mike.annis@jostens.com

Caps, Gowns and Tassels will be delivered to the students at school in the spring

**The November 5th "Senior Merch Delivery Day" date cited on the Josten's website is for picking up items such as Letter Jackets or other class apparel.  Not cap and gowns.**