Joseph A. Foran High School in Milford is closed Wednesday while workers continue to repair an air conditioning malfunction that sent students home early Tuesday.
Students were released at 10 a.m. Tuesday due to the high heat and humidity after school officials noticed the high school's air conditioning system wasn't working properly.
Administrators said the windows at Foran do not open.
Milford Asst. Supt. Michael Cummings said the school will remain closed Wednesday.
Foran High School Principal Max Berkowitz notified parents and guardians of the early dismissal through the School Messenger system on Tuesday.
The Durham Bus company came to transport students home who normally take the bus, according to a news release from the school.