Hourly Weather | Today Friday, September 18, 2026
Santa Clara, California
11 PM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 89%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.84 µg/m³
  • PM10: 20.79 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.