Willow Glen High School has a swimming pool, a basketball court/gym and weight training room, a mini-gym that serves as a wrestling area, a baseball field, a softball field, a multi-purpose track and turf area, a sand volleyball court, and tennis courts.

Willow Glen's Baseball team won a CCS championship in 2013.

The Willow Glen boys' cross country team won the Division 2 CCS championship in 2010 for the first time in twenty-six years, winning again in 2019.

Willow Glen girls' cross country team won the Division 3 CCS Championship in 2022 for the first time ever, and placed 5th that year at the CIF state championship meet in Woodward Park.

Willow Glen High School offers music and drama courses.