Green River High SchoolSchool Calendar
2025-26 Academic Calendar
Key dates, holidays, and events for Green River High School.
School at a Glance
Upcoming events & academic holidays2025-26 Academic Year
OCT
16
End of 1st Quarter
DEC
17
End of 2nd Quarter
MAR
12
End of 3rd Quarter
MAY
26
Last Day of School
JUN
11
Last Day School Offices Open
Calendar TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Green River High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
Testing window
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
Testing window
September 22, 2026
SAT — National
Late registration deadline
September 25, 2026
SAT — National
Score release
September 29, 2026
ACT — National
Late registration deadline
October 1, 2026 – October 30, 2026
PSAT 8/9 — Fall
Testing window
State Assessments
September 8, 2026 – October 2, 2026
WY-TOPP Interim — Fall - ELA
Testing window
WY
September 8, 2026 – October 2, 2026
WY-TOPP Interim — Fall - Math
Testing window
WY
January 12, 2027 – February 5, 2027
WY-TOPP Interim — Winter - ELA
Testing window
WY
January 12, 2027 – February 5, 2027
WY-TOPP Interim — Winter - Math
Testing window
WY