San Antonio Heights Weather Today

San Antonio Heights is an unincorporated community in San Bernardino County, California, United States. It is located just east of the city of Upland and the foothills of the San Gabriel Mountains. The climate in San Antonio Heights is semi-arid with hot summers and mild winters. Average temperatures range from the mid-50s in the winter to the mid-90s in the summer. Precipitation is low, averaging around 14 inches (360 mm) annually. The area is known for its sunny days and cool evenings, with average temperatures year-round in the mid-70s.