Home › Arizona › Tolleson Union High School District (4288)
⚠Unofficial calendar. Always confirm with your district before making plans. Some dates are estimated from nearby districts or past years — those are marked below.
Tolleson Union High School District (4288)
Arizona · 13,665 students · 2026–27 school year
Showing the 2026–27 school year. Past years & forecasts are in our API.
Thanksgiving
Nov 23 – Nov 27
Winter
Dec 28 – Dec 31
Spring
Mar 15 – Mar 19
Last day
May 28
Breaks & no-school days
Day off
Starts
Ends
Labor Day Holiday (No School)
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Sandra Day O'Connor Civics Day All Staff In-Service (No School)
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All Staff In-Service (No School)
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Fall Break
Indigenous People'S Day
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Election Day (No School)
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Veterans Day Holiday (No School)
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Thanksgiving Break
Winter Break
Winter Break (No School)
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Winter Break (No School)
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Winter Recess (No School)
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Mlk/Civil Rights Day Holiday (No School)
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Winter Recess (No School)
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President'S Day Holiday (No School)
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Spring Break
Cesar Chavez Holiday Observed (No School)
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Graduation
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Graduation
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School dayDay offHalf dayEstimated — not yet confirmed by the district