The increasing impacts of extreme heat on health are intensified for children. Impacts extend to negative effects at schools, such as lowered physical activity, heat illness, missed class, and impaired learning ability. However, schools lack practical, localized, and effective heat adaptation solutions to fully prevent these negative impacts. The HeatReady Schools Southwest Regional Resilience Innovation Incubator addresses heat-related concerns to enhance school heat resilience in the Southwest U.S., a region where heat poses significant challenges. HeatReady Schools are those that can identify, prepare for, track, and mitigate the negative impacts of heat based on a set of resilient HeatReady recommendations. The project efforts are designed collaboratively with schools in Los Angeles, California, and Tempe, Arizona, to have direct relevance in practice to those who can benefit most including schoolchildren, staff, and faculty. The project will create new school-level solutions for the Southwest region and other heat-prone regions, expand heat illness prevention and response training across all HeatReady Schools, and promote greater awareness and action around solutions that lower heat illness issues by promoting safe activities to improve learning. The project’s broader impacts lay the groundwork for improving school heat readiness and policies across the southwest. School stakeholders desire more actionable heat protection guidance to support schoolchildren who are vul