Hourly Weather | Today Monday, December 29, 2025
San Jose, California
11 PM
Night
45°
Feels Like 45°
0
Humidity: 66%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

11 PM
51 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.59 µg/m³
  • PM10: 19.03 µg/m³
  • O3: 0.025 ppm
  • NO2: 8.5 ppb
  • SO2: 0.8 ppb
  • CO: 0.23 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.