Hourly Weather | Today Tuesday, January 6, 2026
Napa, California
10 PM
Cloudy Weather
50°
Feels Like 48°
0
Humidity: 97%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Weather
48°
Feels Like 46°
0
Humidity: 99%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

10 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 1.25 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1 µg/m³
  • PM10: 1.64 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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