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STISD Calendar for 2026-2027

Click to Download main STISD 2026-2027 School Year Calendar (Board approved on Feb. 24, 2026)

2026-2027 School Year A/B Calendar 

A-Days: Mondays & Wednesdays | B-Days: Tuesdays & Thursdays | Fridays alternate between A-Days and B-Days


Click to Download 2026-2027 School Year Calendar Legend (for employees)

 

District + Campus Event Calendars

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September 2026
Monday Tuesday Wednesday Thursday Friday Sat/Sun
Monday, August 31
Tuesday, September 1
HOSA LDI (Medical Professions)
All Day
San Antonio
HOSA LDI (Medical Professions)
All Day
San Antonio
South Texas ISD Rising Scholars Academy Main 7th-Grade Parent Meeting
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Rising Scholars Academy Cafeteria
Wednesday, September 2
HOSA LDI (Medical Professions)
All Day
San Antonio
South Texas ISD Health Professions Main Dual Parent Meeting
-
Hippo Hall
South Texas ISD Health Professions Sports Flag Football Game (Health Professions)
-
South Texas ISD Medical Professions Sports Girls Varsity Volleyball (Medical Professions)
-
Medical Professions Gym
Thursday, September 3
South Texas ISD Health Professions Sports Volleyball Varsity & JV (Health Professions)
-
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
RSA Field
South Texas ISD World Scholars Sports Girls Volleyball (World Scholars)
-
South Texas ISD Medical Professions Sports Boys Varsity Flag Football
-
IDEA San Benito Field
South Texas ISD Preparatory Academy Sports Flag Football MSS (Preparatory Academy)
-
Preparatory Academy Gym
Friday, September 4
South Texas ISD Science Academy Sports Flag Football (Science Academy)
-
STISD World Scholars
South Texas ISD Medical Professions Sports Girls Varsity Volleyball
-
South Texas ISD World Scholars Sports Flag Football (World Scholars)
-
South Texas ISD Health Professions Sports Volleyball Varsity (Health Professions)
-
South Texas ISD Science Academy Sports Lady Dragons Volleyball (Science Academy)
-
IDEA Harlingen
South Texas ISD Medical Professions Sports Boys Varsity Volleyball
-
Medical Professions Gym
Saturday, September 5
South Texas ISD Medical Professions Sports Girls Varsity Flag Football (Medical Professions)
-
South Texas ISD Rising Scholars Athletics Volleyball Game (Rising Scholars)
-
South Texas ISD World Scholars Sports Boys Volleyball (World Scholars)
-
South Texas ISD Medical Professions Sports Boys Varsity Flag Football
-
IDEA Harlingen Field
South Texas ISD Science Academy Main Mercedes Street Festival
-
Downtown Mercedes
South Texas ISD Virtual Academy Main Texas Street Festival (Virtual Academy)
-
Downtown Mercedes
Sunday, September 6
Monday, September 7
District Staff Development (No School for Students)
All Day
District Staff Development (No School for Students)
All Day
Tuesday, September 8
South Texas ISD World Scholars Sports Boys Volleyball (World Scholars)
-
South Texas ISD Science Academy Sports Lady Dragons Volleyball (Science Academy)
-
IDEA San Benito
South Texas ISD Title I Family Engagement Meeting (Before Open Houses)
-
Science Academy (Mercedes); Preparatory Academy (Edinburg) & Rising Scholars (San Benito)
South Texas ISD Science Academy Sports Flag Football (Science Academy)
-
Science Academy Field
South Texas ISD Preparatory Academy Sports Girls Volleyball MSP (Preparatory Academy)
-
South Texas ISD Preparatory Academy Sports Flag Football
-
Preparatory Academy Field
South Texas ISD Open House for New-To-Campus & Returning Families (Science Academy)
-
South Texas ISD Science Academy: 900 Med High Dr., Mercedes
South Texas ISD Open House for New-To-Campus Students Only (Rising Scholars Academy)
-
South Texas ISD Rising Scholars Academy: 151 S. Helen Moore Rd., San Benito
South Texas ISD Open House for New-To-Campus Students Only (Preparatory Academy)
-
South Texas ISD Preparatory Academy: 724 S. Sugar Rd., Edinburg
South Texas ISD Science Academy Sports Dragons Volleyball (Science Academy)
-
IDEA San Benito
Wednesday, September 9
South Texas ISD Title I Family Engagement Meeting (Before Open Houses)
-
Virtual Academy (Mercedes); Preparatory Academy (Edinburg) & Rising Scholars (San Benito)
South Texas ISD World Scholars Sports Flag Football (World Scholars)
-
South Texas ISD Open House for Returning Families (Rising Scholars Academy)
-
South Texas ISD Rising Scholars Academy: 151 S. Helen Moore Rd., San Benito
South Texas ISD Open House for New-To-Campus & Returning Families (Virtual Academy)
-
South Texas ISD Virtual Academy: 300 Med High Dr., Mercedes (Biblioteca Las Americas)
South Texas ISD Open House for Returning Families (Preparatory Academy)
-
South Texas ISD Preparatory Academy: 724 S. Sugar Rd., Edinburg
Thursday, September 10
South Texas ISD Science Academy Sports Flag Football (Science Academy)
-
Science Academy Field
South Texas ISD Medical Professions Sports Boys Varsity Flag Football (Medical Profession)
-
South Texas ISD Medical Professions Sports Girls JV + Varsity Volleyball
-
Medical Professions Gym
South Texas ISD Rising Scholars Athletics Volleyball Game (Rising Scholars)
-
South Texas ISD Title I Family Engagement Meeting (Before Open Houses)
-
Health Professions (Mercedes); Medical Professions (Olmito) & World Scholars (Edinburg)
South Texas ISD Open House for New-To-Campus & Returning Families ( Medical Professions)
-
South Texas ISD Medical Professions: 10650 North Expressway 77/83, Olmito
South Texas ISD Open House for New-To-Campus & Returning Families (World Scholars)
-
South Texas ISD World Scholars: 510 S. Sugar Rd., Edinburg
South Texas ISD Open House for New-To-Campus & Returning Families ( Health Professions)
-
South Texas ISD Health Professions: 700 Med High Dr., Mercedes
South Texas ISD Preparatory Academy Sports Flag Football MSS (Preparatory Academy)
-
Friday, September 11
South Texas ISD Science Academy Main Underclassman Photos (Science Academy)
-
Science Academy Gym
South Texas ISD World Scholars Sports Flag Football (World Scholars)
-
South Texas ISD Medical Professions Sports Girls Varsity Volleyball
-
Health Professions Gym (Mercedes)
South Texas ISD Health Professions Sports Volleyball Varsity (Health Professions)
-
South Texas ISD Medical Professions Sports Boys Varsity Volleyball (Medical Professions)
-
Health Professions Gym (Mercedes)
Saturday, September 12
South Texas ISD World Scholars Sports Cross Country Meet (World Scholars)
-
South Texas ISD Medical Professions Sports Girls Varsity Flag Football
-
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
Sunday, September 13
Monday, September 14
South Texas ISD World Scholars Sports Boys Volleyball (World Scholars)
-
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
South Texas ISD Health Professions Sports Volleyball - JV (Health Professions)
-
South Texas ISD Health Professions Sports Flag Football (Health Professions)
-
South Texas ISD Medical Professions Sports Boys Varsity Flag Football (Medical Professions)
-
South Texas ISD Science Academy Sports Flag Football Game (Science Academy)
-
STISD Health Professions Fields
South Texas ISD Medical Professions Sports Girls Varsity Flag Football
-
South Texas ISD Medical Professions Sports Girls JV Volleyball
-
IDEA San Benito Gym
Tuesday, September 15
South Texas ISD Science Academy Sports Lady Dragons Volleyball
-
Science Academy Gym
South Texas ISD Science Academy Sports Flag Football (Science Academy)
-
IDEA Owassa
South Texas ISD World Scholars Sports Flag Football (World Scholars)
-
South Texas ISD Science Academy Sports Dragons Volleyball (Science Academy)
-
Wednesday, September 16
South Texas ISD World Scholars Main Junior Parent Meeting (World Scholars)
-
Gateway to the World Library
Thursday, September 17
South Texas ISD Preparatory Academy Main Coffee with Principal (Preparatory Academy)
-
Gateway to the World Library
South Texas ISD Preparatory Academy Sports Girls Volleyball MSS (Preparatory Academy)
-
South Texas ISD Medical Professions Sports Boys Varsity Flag Football's (Medical Professions)
-
South Texas ISD Rising Scholars Athletics Volleyball Game (Rising Scholars)
-
South Texas ISD Preparatory Academy Sports Flag Football MSS (Preparatory Academy)
-
South Texas ISD Health Professions Sports Flag Football
-
South Texas ISD Health Professions Main Dual Parent Meeting
-
Health Professions Cafeteria
South Texas ISD Preparatory Academy Sports Flag Football MSP (Preparatory Academy)
-
Friday, September 18
South Texas ISD Science Academy Main Senior 📸 Portraits
-
Science Academy Gym
South Texas ISD Science Academy Sports Lady Dragons Volleyball (Science Academy)
-
STISD Medical Profession Gym | Olmito
South Texas ISD Medical Professions Sports Girls Varsity Volleyball (Medical Professions)
-
Medical Professions Gym
South Texas ISD Medical Professions Sports Girls JV Volleyball (Medical Professions)
-
IDEA Elsa Gym
South Texas ISD Science Academy Sports Flag Football (Science Academy)
-
IDEA San Juan
South Texas ISD Medical Professions Sports Boys Varsity Volleyball
-
Medical Professions Gym
Saturday, September 19
South Texas ISD Medical Professions Sports Boys Varsity Flag Football (Medical Professions)
-
IDEA Sports Park Field
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars )
-
South Texas ISD Health Professions Main TSI Review & Camp
-
South Texas ISD Virtual Academy Main Campus Club Meetings (Virtual Academy)
-
Virtual Academy Headquarters (Biblioteca Las Americas: 300 Med High Dr., Mercedes)
Sunday, September 20
Monday, September 21
South Texas ISD Preparatory Academy Sports Girls Volleyball MSP (Preparatory Academy)
-
South Texas ISD Health Professions Sports Volleyball Varsity (Health Professions)
-
South Texas ISD Medical Professions Sports Boys Varsity Flag Football (Medical Professions)
-
South Texas ISD Preparatory Academy Sports Girls Volleyball MSS
-
South Texas ISD Rising Scholars Athletics Volleyball Game (Rising Scholars)
-
Tuesday, September 22
South Texas ISD World Scholars Main Underclassman 📸 Portraits (World Scholars)
-
World Scholars Gym
South Texas ISD Science Academy Main Counselor Night for Seniors (Science Academy)
-
Science Academy Cafeteria
South Texas ISD Virtual Academy Main Counselor Night for Freshman + Sophomores (Virtual Academy)
-
Zoom
South Texas ISD World Scholars Sports Girls Volleyball (World Scholars)
-
South Texas ISD Science Academy Sports Lady Dragons Volleyball (Science Academy)
-
IDEA Brownsville
South Texas ISD STISD Board Meeting
-
South Texas ISD Central Office + Teaching & Learning Center
South Texas ISD Science Academy Sports Dragons Volleyball (Science Academy)
-
IDEA Brownsville
Wednesday, September 23
South Texas ISD Health Professions Sports Volleyball Varsity & JV (Health Professions)
-
South Texas ISD Health Professions Main Dual Enrollment Parent Meeting
-
Medical Professions Cafeteria
South Texas ISD Medical Professions Sports Girls Varsity Flag Football (Medical Professions)
-
South Texas ISD Health Professions Sports Flag Football (Health Professions)
-
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
South Texas ISD Science Academy Sports Flag Football (Science Academy)
-
IDEA Weslaco
Thursday, September 24
South Texas ISD Preparatory Academy Sports Girls Volleyball MSP (Preparatory Academy)
-
South Texas ISD Rising Scholars Athletics Volleyball Game (Rising Scholars)
-
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
Friday, September 25
South Texas ISD Virtual Academy Main Phoenix Fun Day (Virtual Academy)
-
Virtual Academy Headquarters (Biblioteca Las Americas: 300 Med High Dr., Mercedes)
South Texas ISD Rising Scholars Academy Main Coffee with the Principal
-
Rising Scholars Library
South Texas ISD Science Academy Sports Flag Football Game (Science Academy)
-
Science Academy Field
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
South Texas ISD Science Academy Sports Lady Dragons Volleyball (Science Academy)
-
Science Academy Gym
South Texas ISD Medical Professions Sports Boys Varsity Volleyball (Medical Professions)
-
Medical Professions Gym
South Texas ISD Science Academy Sports Dragons Volleyball (Science Academy)
-
Science Academy Gym
Saturday, September 26
South Texas ISD Cross Country Varsity & JV
-
South Texas ISD World Scholars Main IMAS Day of Play (Community Event)
-
IMAS McAllen
South Texas ISD Medical Professions Sports Girls Varsity Flag Football
-
Sunday, September 27
Monday, September 28
South Texas ISD Preparatory Academy Sports Girls Volleyball MSS (Preparatory Academy)
-
South Texas ISD Science Academy Sports Lady Dragons Volleyball (Science Academy)
-
Science Academy Gym
South Texas ISD Rising Scholars Athletics Football Game (Rising Scholars)
-
Tuesday, September 29
South Texas ISD Virtual Academy Main TSI ELAR Camp (Virtual Academy)
-
Virtual Academy Headquarters (Biblioteca Las Americas: 300 Med High Dr., Mercedes)
South Texas ISD Medical Professions Sports Boys Varsity Flag Football (Medical Professions)
-
South Texas ISD Medical Professions Sports Girls Varsity Volleyball (Medical Professions)
-
Medical Professions Gym
South Texas ISD Virtual Academy Main Counselor Night for Juniors + Seniors (Virtual Academy)
-
Zoom
South Texas ISD Science Academy Sports Flag Football Game (Science Academy)
-
IDEA Elsa
South Texas ISD Science Academy Main Counselor Night for Juniors (Science Academy)
-
Science Academy Cafeteria
South Texas ISD Health Professions Sports Volleyball Varsity (Health Professions)
-
South Texas ISD World Scholars Sports Girls Volleyball (World Scholars)
-
South Texas ISD Medical Professions Sports Boys Varsity Volleyball (Medical Professions)
-
Medical Professions Gym
Wednesday, September 30
South Texas ISD Virtual Academy Main TSI ELAR Readiness Based Testing (Virtual Academy)
-
Virtual Academy Headquarters (Biblioteca Las Americas: 300 Med High Dr., Mercedes)
South Texas ISD Science Academy Main Counselor Night for Freshman and Sophomores (Science Academy)
-
Science Academy Cafeteria
South Texas ISD World Scholars Sports Boys Volleyball (World Scholars)
-
Thursday, October 1
South Texas ISD Preparatory Academy Sports Flag Football MSS (Preparatory Academy)
-
South Texas ISD Preparatory Academy Sports Flag Football MSP (Preparatory Academy)
-
Friday, October 2
Saturday, October 3
South Texas ISD Preparatory Academy Sports Girls Volleyball MSP (Preparatory Academy)
-
Sunday, October 4

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