City Offices Closed – Thanksgiving Holiday NovNovember 27 2025 All day Share Facebook Twitter Email Sonoma City Offices are closed in observance of the Thanksgiving Day Holiday. More upcoming events Saturday Harvest Markets at Sonoma Garden Park September 13, 2025 Sonoma Plein Air Festival Art Show & Sale September 13, 2025 Get to know Sonoma’s Sister City – Tokaj, Hungary September 13, 2025 Annual Celebration of Mexican Independence Day & Hispanic Heritage Month September 14, 2025 Sonoma Sundays in the Plaza with Music In Place September 14, 2025 All events ยป