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May 2026
Coming Up
2 this weekSchool Breaks
Holidays (No School)
The Custer County H S school calendar for the 2025-26 school year runs from Thursday, August 21, 2025 to Thursday, May 21, 2026 in Miles City, Montana.
- •3 scheduled breaks and 7 holidays throughout the year
- •Spring break: Apr 2 – Apr 6
- •Winter break: Dec 22 – Jan 2
Custer County H S starts school 5 days later than most Montana districts. Winter break matches the most common Montana schedule, starting 12/22.
Download the iCal file above to sync all Custer County H S dates with your phone or computer.
Frequently Asked Questions
Is Custer County H S school open today?
Yes, Custer County H S is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Custer County H S?
The next day off is Monday, May 25, 2026 for Memorial Day.
When is the first day of school for Custer County H S?
The first day of school for Custer County H S in 2025-26 is Thursday, August 21, 2025.
When is the last day of school for Custer County H S?
The last day of school for Custer County H S in 2025-26 is Thursday, May 21, 2026.
When is spring break for Custer County H S?
Spring break for Custer County H S is Thursday, April 2, 2026 to Monday, April 6, 2026.
When is winter break for Custer County H S?
Winter break for Custer County H S is Monday, December 22, 2025 to Friday, January 2, 2026.
When do students go back to school after winter break?
Students in Custer County H S return to school after winter break on Monday, January 5, 2026. Winter break ends on Friday, January 2, 2026.
When is Thanksgiving break for Custer County H S?
Thanksgiving break for Custer County H S is Thursday, November 27, 2025 to Friday, November 28, 2025.
How do I add Custer County H S calendar to my phone?
Click the "Add to Calendar" button at the top of this page to download the iCal (.ics) file. Then:
iPhone/iPad: Tap the downloaded file, then tap "Add All" to add events to your Calendar app.
Android: Open the file with Google Calendar, review the events, and tap "Import".
Google Calendar (web): Go to Settings → Import & Export → Select the .ics file → Import.
Outlook: Double-click the file or drag it into your Outlook calendar.
Apple Calendar (Mac): Double-click the file or go to File → Import → select the .ics file.
What school district is Miles City, MT in?
Miles City, Montana is served by Custer County H S. This page shows the 2025-26 school calendar including first day, last day, breaks, and holidays.
When does school start in Miles City?
School in Miles City (Custer County H S) starts on Thursday, August 21, 2025 for the 2025-26 school year.
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Last updated: December 31, 2025