Sylmar, CA

s, California Sylmar is a district in the San Fernando Valley region of Los Angeles, located east of Interstate 5 and north of the city of San Fernando. Sylmar was once the site of the world’s largest olive groves. Sylmar is generally flat with sloping hills of the San Gabriel Mountains and Sylmar’s average summer temperature is 88°F (31°C), dropping down to 68°F (20°C) in winter with cooler evenings. Sylmar’s relatively smog free due to strong winds along the foothills.