Festival of Lights Parade, 6 p.m. in downtown Los Altos. Information: losaltosparade.org.
• Holiday Tree Lighting ceremony, sponsored by the Los Altos Village Association, 6 p.m. at Veterans Community Plaza, intersection of Main and State streets in downtown Los Altos. Information: downtownlosaltos.org.
• Los Altos-Los Altos Hills Joint Community Volunteer Awards Luncheon, sponsored by the Los Altos and Los Altos Hills Joint Community Volunteer Service Awards Committee, 11:30 a.m. at the Crowne Plaza Hotel, 4290 El Camino Real, Palo Alto. Information: jointvolunteerawards.com.