In the oppressive heat, students and staff still have to wear masks all day inside of the buildings.
Windsor Locks superintendent Shawn Parkhurst said ventilation is also a concern because there are some air conditioning units that they can't use because of COVID-19 reasons.
That's why he decided to join the dozens of school districts having an early dismissal.
Parkhurst said these tend to be difficult calls to make and even though virtual learning is an option, he decided to not go that route.
“I had a student that reached out and asked me that and one of the things I know is that there is nothing that can replace the experience with in-person learning, even if it’s a modified day. So I chose not to do a remote learning day, but to keep it an in-person day so it is that teacher-student interaction that I know is so critical," Parkhurst said.
He also said that during the high heat, students will be allowed more mask breaks and they will still be providing grab and go lunches.