The following is a list of legal holidays and the dates most state offices will observe them. If a holiday falls on Sunday, the Monday following is the observed holiday. If the holiday falls on Saturday, the preceding Friday is the observed holiday. State primary election days are not legal state holidays. For more information regarding the administration of state employees’ holiday benefits, see policy number 03-0325 of the Montana Operations Manual and sections 1-1-216 and 2-18-603, MCA.
2026
| Holiday | Date |
| New Year’s Day | Thursday, January 1 |
| Martin Luther King Jr. Day | Monday, January 19 |
| Lincoln’s & Washington’s Birthdays (Presidents’ Day) | Monday, February 16 |
| Memorial Day | Monday, May 25 |
| Independence Day | Friday, July 3 |
| Labor Day | Monday, September 7 |
| Indigenous People’s Day/Columbus | Monday, October 12 |
| General Election Day | Tuesday, November 3 |
| Veterans’ Day | Wednesday, November 11 |
| Thanksgiving Day | Thursday, November 26 |
| Christmas Day | Friday, December 25 |
2027
| Holiday | Date |
| New Year’s Day | Friday, January 1 |
| Martin Luther King Jr. Day | Monday, January 18 |
| Lincoln’s & Washington’s Birthdays (Presidents’ Day) | Monday, February 15 |
| Memorial Day | Monday, May 31 |
| Independence Day | Monday, July 5 |
| Labor Day | Monday, September 6 |
| Indigenous People’s Day/Columbus | Monday, October 11 |
| Veterans’ Day | Thursday, November 11 |
| Thanksgiving Day | Thursday, November 25 |
| Christmas Day | Friday, December 24 |