⚠Unofficial calendar. Always confirm with your district before making plans. Some dates are estimated from nearby districts or past years — those are marked below.
Ontario SD 8C
Oregon · 2,218 students · 2026–27 school year
Showing the 2026–27 school year. Past years & forecasts are in our API.
Thanksgiving
Nov 25 – Nov 30
Winter
Dec 21 – Dec 31
Spring
Mar 22 – Mar 26
Last day
May 26
Breaks & no-school days
Day off
Starts
Ends
Teacher Inservice (No School)
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All Staff Inservice (No School)
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Labor Day (No School)
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All Staff Inservice (No School)
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All Staff Inservice (No School)
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Thanksgiving Break
Winter Break
New Years Break (No School)
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Winter Break
All Staff Workday. (No School)
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Martin Luther King Day (No School)
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Presidents' Day (No School)
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All Staff Work Day (No School)
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Spring Break
Teacher Workday
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School dayDay offHalf dayEstimated — not yet confirmed by the district