The family will hold the service at 11 a.m. at Saint Mark's Episcopal Church, located at 600 Colorado Ave. in Palo Alto, with a reception afterward at her family's home. They held a viewing on Monday.
Ms. Le Moullac was struck and killed when her bike collided with a semi truck in San Francisco on Aug. 14. She graduated from Menlo School in Atherton in 2007 and from the University of Southern California in 2011, then went on to work at Voce Communications, a public relations and marketing firm co-founded by Menlo Park councilman Rich Cline.
The firm posted a remembrance of her, writing: "We miss you dearly. We will miss your smile, your humor, your wit and your friendship. You are irreplaceable and unforgettable."
Family and friends also posted condolences on the Voce Communications blog during the past week, and shared memories of her vibrancy, compassion and sense of humor.
The San Francisco resident was struck at 7:07 a.m. at Sixth and Folsom streets by a truck making a turn at the intersection.
The truck driver stopped and cooperated with investigators. The driver was not cited and the collision remains under investigation, police spokesman Officer Albie Esparza said.
The San Francisco Bicycle Coalition issued a statement following the crash, calling it "yet another tragic reminder of what can happen when bikes and large trucks mix on our city's high-speed corridors."
The fatal collision is San Francisco's third involving a bicyclist in 2013 and all three have also involved a large truck, according to the coalition, which called on the city to move forward with a redesign of Folsom Street.
"Folsom Street is one of the city's few designated bike routes to downtown — yet it is still an intimidating street, with no separation between bike riders and fast-moving traffic," the coalition's statement said.
The coalition also called for all large trucks to be fitted with convex mirrors so drivers can more easily see bicyclists and pedestrians.
— Bay City News contributed to this story.