Stop us if you've heard it before: Detroit Public Schools Community District will dismiss class three hours early on Thursday due to extreme heat, which will approach 90 degrees by early afternoon. 

Oh, and Cass Tech is closed. Officials announced Thursday morning the building will also be closed Friday. 

Both the early dismissals and the Cass Tech closure have happened all three days of the Memorial Day-shortened week. For Cass Tech, Thursday's closure is the fourth day in May that the flagship magnet school won't hold classes due to building issues.


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