Hourly Weather | Today › Friday, October 30, 2026
Merced, California
5 AM
Cloudy Night
54°
Feels Like 55°
37
Humidity: 81%
UV Index: 0
Wind: 4 mph
6 AM
Cloudy Night
54°
Feels Like 54°
44
Humidity: 84%
UV Index: 0
Wind: 4 mph
7 AM
Rainy Night
54°
Feels Like 52°
51
Humidity: 87%
UV Index: 0
Wind: 4 mph
8 AM
Cloudy Weather
55°
Feels Like 55°
25
Humidity: 86%
UV Index: 0
Wind: 4 mph
9 AM
Cloudy Weather
57°
Feels Like 61°
20
Humidity: 77%
UV Index: 1
Wind: 5 mph
10 AM
Cloudy Weather
63°
Feels Like 64°
20
Humidity: 68%
UV Index: 2
Wind: 5 mph
11 AM
Cloudy Weather
63°
Feels Like 70°
20
Humidity: 64%
UV Index: 3
Wind: 5 mph
12 PM
Cloudy Weather
64°
Feels Like 70°
20
Humidity: 59%
UV Index: 3
Wind: 5 mph
1 PM
Cloudy Weather
66°
Feels Like 72°
16
Humidity: 55%
UV Index: 4
Wind: 5 mph
2 PM
Cloudy Weather
66°
Feels Like 72°
7
Humidity: 54%
UV Index: 3
Wind: 5 mph
3 PM
Cloudy Weather
68°
Feels Like 70°
7
Humidity: 51%
UV Index: 3
Wind: 5 mph
4 PM
Cloudy Weather
68°
Feels Like 70°
7
Humidity: 49%
UV Index: 2
Wind: 5 mph
5 PM
Cloudy Weather
70°
Feels Like 70°
7
Humidity: 48%
UV Index: 1
Wind: 5 mph
6 PM
Cloudy Weather
66°
Feels Like 64°
7
Humidity: 54%
UV Index: 0
Wind: 5 mph
7 PM
Cloudy Night
64°
Feels Like 64°
7
Humidity: 61%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
63°
Feels Like 63°
7
Humidity: 67%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Night
61°
Feels Like 61°
7
Humidity: 72%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
59°
Feels Like 59°
7
Humidity: 76%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
57°
Feels Like 57°
7
Humidity: 79%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.55 µg/m³
  • PM10: 8.63 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.4 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

6 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.15 µg/m³
  • PM10: 7.99 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.3 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

7 AM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.76 µg/m³
  • PM10: 7.54 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.3 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.21 µg/m³
  • PM10: 7.09 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.41 µg/m³
  • PM10: 6.85 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.7 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 7.05 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

11 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.68 µg/m³
  • PM10: 7.15 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.01 µg/m³
  • PM10: 7.19 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

1 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.81 µg/m³
  • PM10: 6.72 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

2 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.72 µg/m³
  • PM10: 6.41 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

3 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.19 µg/m³
  • PM10: 5.04 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

4 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.73 µg/m³
  • PM10: 3.97 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

5 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.54 µg/m³
  • PM10: 3.58 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

6 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.52 µg/m³
  • PM10: 3.58 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.63 µg/m³
  • PM10: 3.82 µg/m³
  • O3: 0.044 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.

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

Pollutant Concentrations:

  • PM2.5: 1.74 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.8 µg/m³
  • PM10: 4.2 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.88 µg/m³
  • PM10: 4.38 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.8 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.96 µg/m³
  • PM10: 4.61 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.9 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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