Mount Si High School
#21
Best ACT in Washington High Schools
2,081
Students
20.2:1
S:T Ratio
School Snapshot
Key metrics at a glance1,270
A-
29
A
27
A+
20%
C
20:1
B-
96%
A+
90%
A+
58%
B
This Week at Mount Si – August 18, 2026
274 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Mount Si High School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Mount Si High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
August 22, 2026
SAT — National
August 28, 2026
SAT — National
September 1, 2026
ACT — National
September 1, 2026
SAT — National
State Assessments
January 25, 2027 – April 30, 2027
WA-AIM
January 25, 2027 – March 19, 2027
WIDA ACCESS
January 25, 2027 – March 19, 2027
WIDA Alternate ACCESS
March 1, 2027 – June 25, 2027
Smarter Balanced — Online
April 5, 2027 – May 14, 2027
Smarter Balanced — Paper/Pencil
After Mount Si High
Where graduates go and what they studyUniversity of Washington
Washington State University
Western Washington University
Central Washington University
Oregon State University
Boise State University
University of Oregon
Montana State University
Business
Psychology
Computer Science
Biology
Nursing
Marketing
Pre-Medicine Studies
Political Science and Government
Unlock Academic Success
Personalized learning support for Mount Si High School learners
SAT Prep
Practice tests, flashcards, and AI-powered study tools
ACT Prep
Master all four sections with targeted practice
Study Coach
Get instant help with homework and practice problems 24/7
1:1 Tutoring
Match with expert tutors in Snoqualmie
Live Classes
Join interactive group sessions with expert instructors
Practice Hub
Thousands of flashcards and learning resources
8651 Meadowbrook Way Se, Snoqualmie, WA 98065
(425)831-8100
Visit Website
Snoqualmie Valley School District