For the 2026–2027 school year, Lake Dallas ISD publishes its official academic calendar for Texas. Classes begin Aug 12 and end May 26. All dates listed below are sourced from the district's official publications. Verify with Lake Dallas ISD before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Lake Dallas ISD. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Lake Dallas ISD's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- First Day of School / Beginning of 1st Grading PeriodAug 12, 2026School Opens
- No SchoolSep 7, 2026No School
- End of 1st Grading PeriodOct 8, 2026Grading
- No SchoolOct 9, 2026No School
- No SchoolOct 12, 2026No School
- Beginning of 2nd Grading PeriodOct 13, 2026Grading
- Early ReleaseOct 16, 2026Early Release
- Early ReleaseOct 30, 2026Early Release
- No SchoolNov 23 — Nov 27No School
- Early Release / End of 2nd Grading PeriodDec 18, 2026Early Release
- No SchoolDec 21 — Jan 4No School
- Beginning of 3rd Grading PeriodJan 5, 2027Grading
- No SchoolJan 18, 2027No School
- No SchoolFeb 15, 2027No School
- End of 3rd Grading PeriodMar 12, 2027Grading
- No SchoolMar 15 — Mar 19No School
- Beginning of 4th Grading PeriodMar 22, 2027Grading
- Bad Weather Make Up DayMar 26, 2027Event
- No SchoolMar 29, 2027No School
- Bad Weather Make Up DayApr 30, 2027Event
- Early Release / End of 4th Grading PeriodMay 26, 2027Early Release
About the District
School Information
Details and contact information for Lake Dallas ISD.
Sources and Checks
Where these dates come from
How the 2026–2027 Lake Dallas ISD calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Lake Dallas ISD published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against ldisd.net.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Lake Dallas ISD before booking around a date.
Common Questions
Frequently Asked Questions
Lake Dallas ISD Calendar 2026–2027 — important dates and answers.
The first day of school in Lake Dallas ISD is August 12, 2026.
Spring Break in Lake Dallas ISD is from March 15 through March 19, 2027.
Christmas Break in Lake Dallas ISD begins on December 21, 2026, and continues through January 4, 2027. Students return to school on January 5, 2027.
Winter Break in Lake Dallas ISD is from December 21, 2026, through January 4, 2027.
Thanksgiving Break in Lake Dallas ISD is from November 23 through November 27, 2026.
The last day of school in Lake Dallas ISD is May 26, 2027. It is also an early-release day.
The first grading period ends on October 8, 2026.
The second grading period begins on October 13, 2026.
The second grading period ends on December 18, 2026. This is also an early-release day.
The third grading period begins on January 5, 2027.
The third grading period ends on March 12, 2027.
The fourth grading period begins on March 22, 2027.
Early-release days are October 16, 2026; October 30, 2026; December 18, 2026; and May 26, 2027.
The scheduled bad-weather makeup days are March 26, 2027, and April 30, 2027.
No. Lake Dallas ISD schools are closed on September 7, 2026.
No. Lake Dallas ISD schools are closed on January 18, 2027.
No. February 15, 2027, is a no-school day in Lake Dallas ISD.
No. March 29, 2027, is a no-school day in Lake Dallas ISD.
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Recently Updated Calendars
Other Texas school district calendars — recently added or updated.