The Mount Si High School PTSA is again gearing up for one of the year’s most spirited traditions: the Senior Car Parade. Now in its sixth year, the 2025 parade will take place on Saturday, June 7 at 6 p.m., and features a new route through historic Snoqualmie, centered around the high school.
This celebration of the Class of 2025 is open to all graduating seniors from SVSD schools—including Mount Si High School, Two Rivers, and the Parent Partnership Program. From trucks to floats, vehicles will be decked out in school spirit, blasting music and proudly carrying seniors in their caps and gowns through a slow-moving procession of cheers and community pride.
Registration and Guidelines
Participation is free, but seniors must register by Friday, May 30, using the form at bit.ly/mshscarparade. Each student must complete their own waiver—even if riding with another participant—and all vehicles must be driven by a licensed adult 25 or older.
New this year, floats will be allowed due to the revised, low-speed route through local streets. All vehicles must arrive fully decorated between 4:45 and 5:30 p.m. at the Mount Si High School front/visitor parking lot and bus area. Late arrivals will not be allowed to participate.
Graduates must wear their gowns and remain with their vehicles during staging. Decorations must be secure and school-appropriate. Participants are also asked to help keep the area clean and leave no litter behind.
Parade Route & Viewing Info

The parade begins on Meadowbrook Way (Wildcat Way) in front of MSHS and travels around the school, ending on the west side near the Performing Arts Center.
Spectators can park and watch along the route at Meadowbrook and Park, Snoqualmie Elementary, Centennial Field, downtown Snoqualmie, or side streets where permitted.
Grad Night and Senior Celebrations
The MSHS PTSA is organizing events to celebrate the Class of 2025, including Grad Night—an all-night, safe, and sober party held immediately after the June 12 graduation ceremony. The participation cost is $249, including Grad Night and other PTSA-sponsored senior activities. The event includes round-trip transportation, food, entertainment, and surprise activities. No additional fees or spending money are required, and event locations are kept secret to ensure a secure experience.
To participate, seniors must register and complete a legal release, cell phone agreement, and optional medical form. Late or unregistered students will not be permitted to attend. Scholarships are available to ensure every Mount Si graduate has the opportunity to join. For more information, contact the MSHS PTSA Treasurer or email gradnight@mshsptsa.org.
Order a Lei to Celebrate
Honor your graduate with a fresh Hawaiian flower lei—an optional tradition at Mount Si signifying pride, accomplishment, and hope. Proceeds support PTSA events like the car parade and Grad Night. Orders close May 25, and leis will be distributed at school before graduation. Scholarships are also available.

Links and More Info
Car Parade registration, Grad Night signups, and lei purchases are all available here.
As graduation approaches, these celebrations offer a meaningful way for students, families, and the Snoqualmie Valley community to come together and recognize the achievements of the Class of 2025. Whether cheering along the parade route or supporting end-of-year events, it’s a chance to honor this milestone and send our seniors off with pride, gratitude, and plenty of well-deserved applause.