Hourly Weather | Today Wednesday, May 20, 2026
Merced, California
7 PM
Cloudy Weather
86°
Feels Like 84°
0
Humidity: 20%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
82°
Feels Like 81°
0
Humidity: 25%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 30%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 36%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
70°
Feels Like 68°
0
Humidity: 43%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.62 µg/m³
  • PM10: 6.25 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 6.82 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.77 µg/m³
  • PM10: 6.93 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.8 µg/m³
  • PM10: 7.1 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.85 µg/m³
  • PM10: 7.3 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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