Calendars
STISD Calendar for 2026-2027
STISD Board-Approved Calendar (2025-2026)
Download main STISD 2025-2026 School Year Calendar (Board approved on Feb. 18, 2025)
Download STISD 2025-2026 School Day Calendars:
2025-2026 A/B/C Academic Calendar HP, MP + SA
2025-2026 A/B Academic Calendar PA, RS + WS
* Please note: STISD Virtual Academy does not have an A/B or A/B/C schedule. All classes meet daily, Monday-Friday. Please refer to the Board Approved Main 2025-2026 School Year Calendar listed above for holidays, instructional periods, testing dates, etc.)
Download STISD 2025-2026 School Calendar Legend (for employees)
District + Campus Event Calendars
April 2026
Monday
Tuesday
Wednesday
Thursday
Friday
Sat/Sun
Monday,
March
30
Tuesday,
March
31
South Texas ISD
Meeting of the STISD Board of Directors
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STISD Central Office Teaching and Learning Center (7001 E. Expressway 83, Mercedes)
Wednesday,
April
1
Thursday,
April
2
Friday,
April
3
Central Office and all STISD campuses
Central Office and all STISD campuses
Saturday,
April
4
Sunday,
April
5
Monday,
April
6
Tuesday,
April
7
Wednesday,
April
8
Thursday,
April
9
Friday,
April
10
Saturday,
April
11
Sunday,
April
12
Monday,
April
13
Tuesday,
April
14
Wednesday,
April
15
Thursday,
April
16
Friday,
April
17
Saturday,
April
18
Sunday,
April
19
Monday,
April
20
Tuesday,
April
21
Wednesday,
April
22
Thursday,
April
23
Saturday,
April
25
No ILL's for Students
All Day
South Texas ISD
"Growing Together: Nurturing Strengths, Building Connections" Parent Conference on Autism Support
-
STISD Teaching & Learning Center, 7001 E. Expressway 83, Mercedes
Sunday,
April
26
Monday,
April
27
Tuesday,
April
28
South Texas ISD
Meeting of the STISD Board of Directors
-
STISD Central Office Teaching and Learning Center (7001 E. Expressway 83, Mercedes)
Wednesday,
April
29
Thursday,
April
30
Friday,
May
1
Saturday,
May
2
Sunday,
May
3
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