SchoolDates
Read from the district on September 29 and October 8, 2026

Sioux Falls school calendar, 2026–2027

Key dates for 2026–2027: first day of school August 25; Thanksgiving break November 25–27; winter break December 23 to January 1; spring break March 26–29; last day of school May 26.

Next time off Oct 12 No school · October 12–13 As of October 8, 2026, the day this calendar was read
School days off this year 24 across 10 separate closures
Last day of school May 26 Wednesday
First day of school August 25; Thanksgiving break November 25–27; Winter break December 23 to January 1; Spring break March 26–29; Last day of school May 26;
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Month by month

Days off: school breaks, holidays and staff days. Not days off: term milestones.

August 2026

SMTWTFS
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
  • 11Staff day
  • 12Staff day
  • 18WEB Orientation Day - Incoming 6th graders
  • 20RISE Open House
  • 24Staff day
  • 25Back to School Open House!
  • 27First day for some students

September 2026

SMTWTFS
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
  • 1Early Childhood first day
  • 4–7Labor Day
  • 29ACT Prep-Math/Science

October 2026

SMTWTFS
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
  • 5Testing
  • 8Testing
  • 12–13No school
  • 14Graduation
  • 15Conferences

November 2026

SMTWTFS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
  • 11Veterans Day
  • 25–27Thanksgiving break

December 2026

SMTWTFS
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
  • 8Bison Community Outreach Event - Holidays in the Halls
  • 23 onWinter break

January 2027

SMTWTFS
27
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
  • to 1Winter break
  • 4Classes resume
  • 15No school
  • 18MLK Day

February 2027

SMTWTFS
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
  • 15Presidents Day
  • 16No school
  • 25Conferences

March 2027

SMTWTFS
28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
  • 1Staff day
  • 11Kindergarten 27-28 Registration
  • 26–29Spring break

April 2027

SMTWTFS
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
  • 19No school

May 2027

SMTWTFS
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
  • 20Graduation
  • 23Graduation
  • 26Last day
School break Holiday, no school Staff day, no students Term milestone

Key dates

Key dates · 2026–2027
WhatDatesSchool daysBack to schoolSame dates in South Dakota
First day of schoolAugust 25——2 of 5
Thanksgiving breakNovember 25–273Monday, November 302 of 6
Winter breakDecember 23 to January 18Monday, January 43 of 6
Spring breakMarch 26–292Tuesday, March 302 of 5
Last day of schoolMay 26——1 of 6
Longest closure
Winter break, December 23 to January 1 (8 school days)
One-day closures
3
Closures starting Tuesday to Thursday
3
Staff days, no students
3: Oct 13, Jan 15, Mar 1
Early-release days
none published
Most days off in one month
December, 7 school days
Months with no day off
August and May
Longest run of school days
27, April 20 to May 26

Latest first day of school of the 5 South Dakota districts we read, tied with Lennox: Tuesday, August 25.

Latest last day of school of the 6 South Dakota districts we read: Wednesday, May 26.

Every date

Every published date · Sioux Falls · 2026–2027
DateWhat it isTime offDistrict’s own wording
August 11Teacher work day, no students—School Bus Inc. Training/Inservice
August 12Teacher work day, no students—School Bus Inc Training/Inservice
August 12WEB Day - 6th grade orientation—WEB Day - 6th grade orientation
August 18WEB Orientation Day - Incoming 6th graders—WEB Orientation Day - Incoming 6th graders
August 20RISE Open House—RISE Open House
August 24Teacher work day, no students—District Level Inservice at RF/CC
August 24Early Childhood Open House—Early Childhood Open House
August 24George McGovern Open House—George McGovern Open House
August 24PHMS Open House—PHMS Open House
August 25Back to School Open House!—Back to School Open House!
August 25CC Open House—CC Open House
August 25First day of school—First Day of School
August 25First-Fifth Grade Open House—First-Fifth Grade Open House
August 25Hawthorne Open House—Hawthorne Open House
August 25Horace Mann Open House—Horace Mann Open House
August 25JFK Open House—JFK Open House
August 25K-5 Open House—K-5 Open House
August 25OPEN HOUSE—OPEN HOUSE
August 27First day for some students—First day for students
September 1Early Childhood first day—Early Childhood first day
September 1First day for some grades—First Day of School for Early Childhood RISE
September 4–7Labor Day2 school daysNo School-Labor Day; Sep 7: No Classes - Holiday
September 29ACT Prep-Math/Science—ACT Prep-Math/Science
October 5Testing—semester test previews
October 8Testing—PSAT readiness check
October 12–13No school2 school daysNo Classes - Holiday
October 12Testing—Semester Test Previews
October 13ACT Prep-Math/Science—ACT Prep-Math/Science
October 13Teacher work day, no students1 school dayFine Arts Professional Learning
October 13Parent-teacher conferences—Parent-Teacher Conferences
October 14Graduation—Senior Graduation Meeting
October 15Parent-teacher conferences—Parent-Teacher Conferences
November 11Veterans Day1 school dayNo Classes - Holiday
November 25–27Thanksgiving break3 school daysNo School- Thanksgiving Break; Nov 26–27: No Classes - Holiday; Nov 26–27: no school - Holiday Break
December 8Bison Community Outreach Event - Holidays in the Halls—Bison Community Outreach Event - Holidays in the Halls
December 8Orchestra: Holiday in the Halls (MS Orchestra Ensemble)—Orchestra: Holiday in the Halls (MS Orchestra Ensemble)
December 8Show Choir: Holiday in the Halls (Middle School)—Show Choir: Holiday in the Halls (Middle School)
December 23 to January 1Winter break8 school daysNo School- Holiday Break; Dec 24–Jan 1: No Classes - Holiday
January 4Classes resume—Back to School
January 15No school1 school dayNo Classes - Holiday
January 15Teacher work day, no students1 school dayNo School - Teacher Work Day
January 18Martin Luther King Jr. Day1 school dayNo Classes - Holiday
February 15Presidents Day1 school dayNo Classes - Holiday
February 16No school1 school dayNo Classes - Holiday
February 25Parent-teacher conferences—Parent-Teacher Conferences
March 1Teacher work day, no students1 school dayInservice
March 1No school1 school dayNo Classes - Holiday
March 1Parent-teacher conferences—Parent-Teacher Conferences
March 11Kindergarten 27-28 Registration—Kindergarten 27-28 Registration
March 11Kindergarten Open House—Kindergarten Open House
March 11Kindergarten Registration—Kindergarten Registration
March 11Kindergarten Registration Open House—Kindergarten Registration Open House
March 26–29Spring break2 school daysNo Classes - Holiday
April 19No school1 school dayNo Classes - Holiday
May 20Graduation—5th Grade Graduation
May 23Graduation—High School Graduation
May 26Last day of school—Last Day of School/Year End Activities Day

Sources

  1. District’s calendar: https://www.sf.k12.sd.us/events (the source)
  2. District website: https://www.sf.k12.sd.us
  3. Calendar feed read on October 8, 2026: https://thrillshare-cmsv2.services.thrillshare.com/api/v4/o/9604/cms/events

How these dates are read and labeled: Methodology.

Other South Dakota districts

Pierre: 23 school days off Lennox: 22 school days off Avon: 30 school days off Aberdeen: partial calendar