We would like to welcome our returning and new MSHS families to the 2019-2020 school year AND provide you with information on how you can get involved this school year!   

Please take a look around to learn more about what we do, how we support the students, staff and parents, AND volunteer opportunities.

MSHS PTSA addresses issues that are important to our parents, teachers and students. Some of the key items we focus on during the school year are listed in the table below.  

Parents Teachers Students Association
Education seminars Classroom Wish Lists Welfare Membership
Parental Involvement Appreciation School Culture  
Financial and Volunteer Support Recognition Recognition  
    SAT/ACT Prep  





Join or renew your annual PTSA membership.  There are many benefits of being a member, CLICK HERE to find out!

The information you provide to us here will enable us to communicate to you in a timely and accurate manner during the school year.  


Make a donation anytime during the school year.




Volunteer for PTSA programs and events.




Like Us On Facebook.  Information on PTSA programs and events are posted here on our website AND on Facebook.  



Test preparation taught by Washington State certificated teachers!

Preparation for the SAT!
Fall Course: Mon., Wed., October 28, 30, November 4, 6, 13, 19, 4:30 – 7:15p.m.
Course Reg. Deadline: October 27, 2019

Spring Course: Mon., Wed., April 1, 6, 8, 20, 22, 27, 4:30 – 7:15p.m.
Course Reg. Deadline: March 30, 2020

COSTS: The SAT Prep Course - 6 sessions including textbook and all materials: $389

Questions?  E-Mail: office@SATPrep.org Phone (425) 305-7269

Registration information:
To register and see more COURSE options CLICK HERE 

A portion of the registration fee goes to support the Mount Si PTSA!

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Hidden In Plain Sight Parent Event ~ Oct 29 & 30, 7pm

The first Parent Education Seminar of the school year is coming to Mount Si High School on Tuesday, October 29th at 7pm. All SVSD middle schools and high school parents are invited!

The counselor at MSHS has been working in conjunction with the Snoqualmie Valley Community Network, police and fire departments and others to bring this seminar, “Hidden in Plain Sight” to MSHS. All middle school and high school parents are invited to attend the adults-only event for free, space is limited, you must RSVP by clicking on link to register below.

When: Tuesday, October 29th

Time: 7-9pm

Where: Mount Si High School

Register HERE   FREE EVENT MUST REGISTER by 10/27 to RSVP, space is limited.  

More Information: CLICK HERE

Evening Agenda:

7:00pm              Explore the Teen Room (Room will have alcohol/drug items hidden in it)  & Visit Information Tables (Tables may include organizations like Raging Rivers, Lakeside Milam, Friends of Youth, Snoqualmie Valley Hospital,                      Sound, Teen Link, Trail Youth, Changes Parent Support) 

7:45pm              Welcome: Laura Smith, SVCN and Superintendent Manahan

7:50pm              Drug Trends in the Upper Snoqualmie Valley: Snoqualmie/North Bend police department

8:05pm              Warning Signs of Overdose: Snoqualmie Fire

8:10pm              Keeping Kids Drug-Free: Jerry Blackburn, Influence the Choice

8:35pm              Room Debrief and Closing:  Erica Healy, Mount Si


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Oct 13
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