SchoolDates
Read from the district on October 8, 2026

Oostburg school calendar, 2026–2027

Key dates for 2026–2027: first day of school August 31; Thanksgiving break November 25–27; winter break December 24 to January 1; spring break March 22–26; last day of school June 3.

Next time off Oct 30 Teacher work day, no students · October 30 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 June 3 Thursday
First day of school August 31; Thanksgiving break November 25–27; Winter break December 24 to January 1; Spring break March 22–26; Last day of school June 3;
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Month by month

Days off: school breaks, holidays and staff days. Not days off: early releases and 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
  • 24–27Staff day
  • 31First day

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
  • 4No school
  • 7Labor Day
  • 16Early release

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
  • 5Staff day
  • 8Conferences
  • 13Conferences
  • 14Early release
  • 30Staff day

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
  • 11Early release
  • 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
  • 9Early release
  • 24 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
  • 13Early release
  • 18Staff 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
  • 10Early release
  • 25Staff day
  • 26No school

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
  • 10Early release
  • 15 onTesting

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
  • to 23Testing
  • 30Staff day

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
  • 3–14Testing
  • 23Graduation
  • 31Memorial Day

June 2027

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
  • 1–2Testing
  • 3Last day
  • 4Staff day
School break Holiday, no school Staff day, no students Early release Term milestone

Key dates

Key dates · 2026–2027
WhatDatesSchool daysBack to schoolSame dates in Wisconsin
First day of schoolAugust 31——1 of 11 · Wisconsin first day of school 2026, by district
Thanksgiving breakNovember 25–273Monday, November 3010 of 13 · Wisconsin Thanksgiving break 2026, by district
Winter breakDecember 24 to January 17Monday, January 41 of 14 · Wisconsin winter break 2026–27, by district
Spring breakMarch 22–265Monday, March 295 of 14 · Wisconsin spring break 2027, by district
Last day of schoolJune 3——5 of 14 · Wisconsin last day of school 2027, by district
Longest closure
Winter break, December 24 to January 1 (7 school days)
One-day closures
5
Closures starting Tuesday to Thursday
3
Staff days, no students
5: Oct 5, Oct 30, Jan 18, Feb 25, Apr 30
Early-release days
9: Sep 16, Oct 14, Nov 11, Dec 9, Jan 13, Feb 10 and 3 more
Most days off in one month
December, 6 school days
Months with no day off
August and June
Longest run of school days
27, January 19 to February 24

Shortest winter break of the 14 Wisconsin districts we read: 7 school days, December 24 to January 1.

Earliest first day of school of the 11 Wisconsin districts we read: Monday, August 31.

Every date

Every published date · Oostburg · 2026–2027
DateWhat it isTime offDistrict’s own wording
August 24–27Teacher work day, no students—District Teacher In-service week
August 26Freshman Orientation—Freshman Orientation
August 31First day of school—First Day of School
September 4No school1 school dayNo School - District Closed
September 7Labor Day1 school dayLabor Day - District closed
September 16Early release—Early Release
October 5Teacher work day, no students1 school dayIn-service - No School for Students
October 8Parent-teacher conferences—OMS Parent-Teacher Conferences
October 13Parent-teacher conferences—OMS Parent-Teacher Conferences
October 14Early release—Early Release
October 30Teacher work day, no students1 school dayIn-service Day - No School for Students
November 11Early release—Early Release
November 25–27Thanksgiving break3 school daysThanksgiving Break - District Closed
December 9Early release—Early Release
December 24 to January 1Winter break7 school daysWinter Break - District Closed
January 13Early release—Early Release
January 18Teacher work day, no students1 school dayIn-service - No School for Students
February 10Early release—Early Release
February 25Teacher work day, no students1 school dayIn-service - No School for Students
February 26No school1 school dayNo School - District Closed
March 10Early release—Early Release
March 15 to April 23Testing—Forward Exams
March 22–26Spring break5 school daysSpring Break - District Closed
April 14Early release—Early Release
April 30Teacher work day, no students1 school dayIn-service - No School for Students
May 3–14Testing—AP Digital Exams
May 12Early release—Early Release
May 23Graduation—Commencement Program (OHS Fieldhouse)
May 31Memorial Day1 school dayMemorial Day - District Closed
June 1–2Testing—HS Semester Exams
June 3Last day of school—Early Release - Last Day of School/End Q4
June 4Teacher work day, no students—In-service (No school for students)

Sources

  1. District’s calendar: https://www.oostburg.k12.wi.us/events (the source)
  2. District website: https://www.oostburg.k12.wi.us
  3. Calendar feed read on October 8, 2026: https://thrillshare-cmsv2.services.thrillshare.com/api/v4/o/8624/cms/events

How these dates are read and labeled: Methodology.

Other Wisconsin districts

Baraboo: 24 school days off Edgerton: 24 school days off Weston: 24 school days off Hurley: 23 school days off