Los Altos Follies, 7:30 p.m. at Bus Barn Theater, 97 Hillview Ave. The performance is a fund- raiser for the Los Altos Stage Company. Information: 941-0551 or losaltosstage.org/follies.
Los Altos Fall Festival, 10 a.m. to 5 p.m. in downtown Los Altos. The festival includes arts and crafts booths, a classic car show, food and live entertainment. Information: losaltoschamber.org.