Lewisville ISD Calendar 2026-2027

The 2026-2027 calendar for Lewisville ISD (LISD) has 29 weekdays without school between the first and last day: 20 in three breaks, six single holidays and three teacher workdays. Classes begin August 12, 2026 and end May 21, 2027; the longest stretch off is winter break, 17 days in a row.

Checking today…

First dayWed, Aug 12, 2026

Last dayFri, May 21, 2027

Spring breakMar 15-19, 2027back Mon, Mar 22, 2027

Winter breakDec 21 to Jan 1back Tue, Jan 5, 2027

All 2026-2027 dates

174 student days (district count) · Weekends are not listed. Past dates are dimmed.

Lewisville ISD 2026-2027 Academic Calendar dates
Date	Event
Wed, Aug 12, 2026	First day of school
Mon, Sep 7, 2026	Labor Day
Fri, Oct 9, 2026	Teacher workday, no school for students
Mon, Oct 12, 2026	Holiday
Tue, Nov 3, 2026	Teacher workday, no school for students
Mon, Nov 23 to Fri, Nov 27, 2026	Thanksgiving break · 5 school days off
Fri, Dec 18, 2026	Early release
Mon, Dec 21, 2026 to Fri, Jan 1, 2027	Winter break · 10 school days off
Mon, Jan 4, 2027	Teacher workday, no school for students
Mon, Jan 18, 2027	Martin Luther King Jr. Day
Mon, Feb 15, 2027	Presidents' Day
Mon, Mar 15 to Fri, Mar 19, 2027	Spring break · 5 school days off
Fri, Mar 26, 2027	Holiday
Mon, Mar 29, 2027	Bad Weather Day
Mon, Mar 29, 2027	Possible weather make-up day
Fri, May 21, 2027	Early release
Fri, May 21, 2027	Last day of school

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Verified against Lewisville ISD’s official 2026-2027 calendar on September 26, 2026 (board-approved version). Confidence: High.

Source: Lewisville ISD Academic Calendar 2026-2027 (PDF) · district calendar page

Note: Approved by the Board of Trustees on Dec. 8, 2025 ('2026-27 Academic Calendar' under Approved Action Items in the district's Board Recap of Dec. 11, 2025). The linked file ('2627Calendar_FINAL.pdf', January 2026) only adds the new school hours to the version posted in December 2025; every date is the same. The calendar labels every break 'Holiday' and does not name them; the Nov. 23-27, Dec. 21 - Jan. 1 and Mar. 15-19 weeks are stored as the Thanksgiving, winter and spring breaks. Jan. 4 is a staff day; students return Jan. 5. Oct. 9, Nov. 3 and Feb. 15 (Presidents' Day) are marked 'Student Holiday, Staff Day'. March 29 is marked 'Bad Weather Day' and is not counted as a student day, so it may become a make-up day if needed. Student days: 84 (first semester) + 90 (second semester) as stated on the calendar (nine-week periods of 41, 43, 47 and 43 days, which our count of the listed dates matches). Dec. 18 is an early release for students and staff; May 21 (last day) is a student early release. Memorial Day (May 31) is after the last day of school. The district's online calendar feed (Calendars page) lists the same no-school days, early releases and Bad Weather Day.

Break details

Nearby districts

District	First day	Spring break	Last day
Lewisville ISD	Aug 12	Mar 15-19	May 21
Frisco ISD	Aug 12	Mar 15-19	May 14
Plano ISD	Aug 11	Mar 15-19	May 21
Dallas ISD	Aug 11	Mar 15-19	May 26
Arlington ISD	Aug 12	Mar 15-19	May 26
Garland ISD	Aug 10	Mar 15-19	May 27
Fort Worth ISD	Aug 10	Mar 15-19	May 21

Frequently asked questions

When is spring break 2027 for Lewisville ISD?

Spring break is Mon, Mar 15 to Fri, Mar 19, 2027. The last day of school before it is Friday, March 12, 2027, and students return Monday, March 22, 2027.

When does the 2026-2027 school year start and end for Lewisville ISD?

The first day of school is Wednesday, August 12, 2026 and the last day is Friday, May 21, 2027, 174 student days in total.

How many school days are in the Lewisville ISD 2026-2027 calendar?

174 student days, as stated on the district's calendar. Our count of every weekday between the first and last day, minus the breaks, holidays and teacher workdays listed below, gives the same number.

Does Lewisville ISD have a fall break?

The 2026-2027 calendar does not include a fall break. The first multi-day break is Thanksgiving (Nov 23-27, 2026).

Is there school on Veterans Day in Lewisville ISD?

Yes. Wednesday, November 11, 2026 is a regular school day on the 2026-2027 calendar.

Where do these Lewisville ISD dates come from?

Source: the district's “Lewisville ISD Academic Calendar 2026-2027”, checked on September 26, 2026. We link the document on this page; if the district changes it, we update the dates and the “verified” date.

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About the district: Lewisville ISD is based in Lewisville, Texas (Denton County), with about 47,876 students in 57 schools (NCES Common Core of Data, 2024-25). District website: www.lisd.net. See all Texas school calendars.