Mount Si High School (MSHS)

  • School office hours: MSHS main office will open August 20, 7 a.m. - 3 p.m. (The office will be closed daily 11:45 a.m. - 1 p.m.) Counseling Center opens August 21 (425-831-8150). Attendance Office opens August 23 (425-831-8200). See summer hours.  (NOTE: All MSHS offices are closed for training August 22, 7 a.m. - 12:30 p.m. And, Finance Office is closed for training August 23, 7 a.m. - 12:30 p.m.) 
  • Back-to-school events:
    • Fall Sports late registration will re-open August 16 until August 19 at noon. See details.
    • MSHS student orientation and tours of the building to locate classes will take place Tuesday, September 3 as follows:
      • 8:30-9:30 a.m. (gym) -- NEW to SVSD: 9th grade orientation
      • 9:45-11:45 a.m. (gym) -- ALL freshmen building orientation
      • 12:30-1 p.m. (gym) -- NEW to SVSD: 10th-12th grade orientation
      • 1:30-3:30 p.m. (gym) -- ALL 10th-12th grade building orientation 

Watch for a letter from the school with more details including a map with parking directions

    • First Day of School is Wednesday, September 4.
    • The Grand Opening Community Celebration will be Saturday, September 7, 10 a.m. celebration with Open House & tours until 4 p.m. – Save the date!
  • School Supplies:  On the first day of school, high school students should come prepared with basic supplies (backpack, paper, pen and pencil).  Teachers may request more specific supplies based on the needs of their classes.
  • What’s new this year?  
    • The new Mount Si High School opens this fall. Welcome Wildcats!
    • New Bell Times Schedule  (M-Th: 7:50 a.m. - 2:29 p.m., Friday: 7:50 a.m. - 12:29 p.m.)  
    • One-to-one Computing Initiative will be rolled out to MSHS and SMS students this fall, followed by all other students in grades 6-12 later in the year. Parents must complete the permission form in the RSVP Process in Family Access before a student will receive a laptop for use at school and home