Flooding, storm damage and power outages will keep 24 schools in South Australia closed on Tuesday, with some Year 12 students missing their final exams.
The Education Department CEO Martin Westwell said dealing with impact of Saturday's severe weather could take days.
"As of 3pm, our expectation that [some] schools and preschools will remain closed," Mr Westwell said.
"Parents are encouraged to keep an eye out on communication from their school.
"We appreciate these closure have been challenging for parents and families.
"When there's no power available its really not safe for students to go that site."
Closures will be listed on the department's website and Facebook page, but parents are advised to keep up with school communications.
The SACE Board confirmed special provisions policy will be enacted for those students who couldn't sit their final exams on Monday, and they will still receive their SACE.
Mr Westwell said some senior students will miss their exams tomorrow.
"Two schools haven't been able to sit their exams, so there's a number of students there that have been affected," Mr Westwell said.
"They can have confidence in the SACE board process that they will get the appropriate grade."
Blackwood High School students in Adelaide sat their Year 12 exams during a power outage on Monday morning.
Student Abby Wheeler said she feels she went "OK" considering she had to sit her chemistry exam in the dark.
"We just kept the windows open so we could get as much light as possible – it was hard to study though," said Ms Wheeler.
Blackwood student Thomas Stocco said he was forced to study in the dark.
"It was hard to study with no power … all the resources are online," Mr Stocco said.
"I was studying by candlelight."
Clean-up continues
While power has been restored to the majority of homes and businesses in South Australia, some 30,000 properties remain in the dark.
At the height of the outage, SA Power Networks said 163,000 of its customers lost supply, but crews have made significant progress in restoring the network, and teams from NSW are on their way to assist.
The state was hit with wild winds, rain, thunder and lightning over the weekend, causing widespread blackouts and storm damage.
Paul Roberts from SA Power Networks said most homes should have their power restored by Tuesday, but there could be some "stragglers" without power until Wednesday, particularly in the Upper Sturt area.
He said a two-kilometre power line in the Upper Sturt area would have to be rebuilt.
The State Emergency Service (SES) was called out to about 1,000 jobs in 24 hours.
