Family Day
When: Sunday, October 25, 2026 at 12:30 PM PT
Where: Robert Ferguson Observatory, Sonoma Valley, CA
Family Day at Robert Ferguson Observatory. Family Day is a family event in Sonoma, California. It takes place at Robert Ferguson Observatory. The address is Robert Ferguson Observatory, Sonoma Valley, CA. The date is Sunday, October 25, 2026 and it starts at 12:30 PM Pacific time. This listing comes from sonomavalleyevents.com. It is listed under Family on the SoCoSync calendar of Sonoma County events, which is rebuilt every night from venue and community sources. Check the venue page for changes before you go.