What is the lowest temperature in schools?

There's no single lowest temperature for all schools. The minimum acceptable temperature in a school building depends on:

* Location: Schools in colder climates will have different standards than those in warmer climates.

* Local regulations: Many jurisdictions have building codes or health and safety regulations specifying minimum temperatures for occupied spaces.

* School policy: Individual schools might set their own internal policies based on budget, building age, and other factors.

Therefore, there's no universally applicable answer. You'd need to consult local building codes or the specific school's policies to find the lowest acceptable temperature for a particular school.