More than 70 campuses in the San Diego Unified School District will operate on a minimum day schedule again Friday because of the continuing heat wave, district officials said.
When temperatures are expected to be 95 degrees or higher with a heat index of 103 degrees or higher, campuses with air conditioning in less than 80 percent of their classrooms may be instructed to move to a minimum day schedule.
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The National Weather Service is calling for temperatures in the mid to high 90s Friday.
Superintendent Cindy Marten makes the decision to call a half-day in collaboration with district and school staff, according to the SDUSD.
All campuses have hot weather plans in place and plan to implement them Friday.