The Philadelphia Montessori Charter School in Southwest Philadelphia is closed Monday.
A small fire in the school last night forced officials to close for the day.
The school says there is significant water damage from the sprinkler system.
There's no word on when the school will reopen.
Wednesday will be less humid but it remains warm all week long.
Tuesday (93/72): Clouds/Storm
Wednesday (88/74): Sun/Clouds
Thursday (89/67): Sunny/Hot