All after-school activities at each campus are also cancelled for Sept. 13-14.
Board of trustee meetings, which were scheduled for Sept. 13-14, have been cancelled as well and will be rescheduled to a later date, according to the release.
"Tomball ISD officials have continued to monitor the weather forecast and sought advice from local weather experts," the release said. "Due to possible street flooding and staffing concerns, officials have determined it is in the best interest to close schools Tuesday and cancel activities."
TISD will continue to monitor the weather and communicate school-related information when available, according to the release.