Happy Halloween, San Francisco! This is your weather for Friday, October 31st, 2025. - Morning starts at a cool 56 degrees, with clear skies - Daytime high of 63 degrees, perfect for outdoor activities - Evening temperature dips to about 60 degrees, clear skies continue - Mild west breeze, ideal for Halloween festivities without weather worries Have a spooktacular time this Halloween and check back tomorrow for another update.
