San Francisco Weather Today
United States · Thursday, March 12, 2026
Real-time Air Quality Index (AQI)
San Francisco Weather & Air Quality Overview
San Francisco is a city in United States, located in the Northern Hemisphere at coordinates 37.77°N, 122.42°W. With a population of approximately 4.7 million, it is one of the notable urban centers in Americas. San Francisco experiences a temperate climate. This page provides real-time temperature, humidity, wind speed, UV index, air quality monitoring, and a detailed 10-day weather forecast for San Francisco, United States.
Right now in San Francisco, the temperature is 11°C (feels like 8°C) with mainly clear. Humidity is at 64%. Winds are blowing at 8 km/h. Today's high is expected to reach 24°C and the low will be around 11°C.
The current Air Quality Index (AQI) in San Francisco is 34, rated as Good. The dominant pollutant is PM2.5.
- Today's high in San Francisco: 24°C
- Humidity in San Francisco: 64%
- Current AQI in San Francisco: 34 (Good)
- Wind in San Francisco: 8 km/h
Weather in San Francisco and the San Francisco forecast are updated every few minutes. For more cities, see our weather directory and global AQI map, or check city AQI rankings and weather guides.
Data updates every few minutes. Weather powered by Open-Meteo. Air quality from multiple monitoring networks.