Companion Care Needed For My Mother .

My mother was diagnosed with early onset Alzheimer's several years ago. She has daily companion care during the week, and I spend afternoons with her - as well as weekend mornings. She still lives independently, as she is comfortable, familiar and happy being home. Looking for additional companion care later afternoons on weekends. Possibly add more hours during the week when I'm out of town - or when school starts - I'm a teacher. She is always in a positive mood, and is very active - enjoys going for walks in her neighborhood. I worry about her being alone and not regulating the hot afternoon temperatures.