Hourly Weather | Today › Wednesday, October 28, 2026
Modesto, California
12 PM
Sunny Weather
63°
Feels Like 64°
0
Humidity: 53%
UV Index: 3
Wind: 9 mph
1 PM
Sunny Weather
64°
Feels Like 66°
0
Humidity: 47%
UV Index: 4
Wind: 9 mph
2 PM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 40%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 37%
UV Index: 3
Wind: 8 mph
4 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 34%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 34%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 38%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 44%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 50%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 56%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
55°
Feels Like 55°
0
Humidity: 62%
UV Index: 0
Wind: 2 mph
11 PM
Cloudy Night
52°
Feels Like 54°
0
Humidity: 68%
UV Index: 0
Wind: 2 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 6.57 µg/m³
  • PM10: 14.85 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.85 µg/m³
  • PM10: 14.17 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.78 µg/m³
  • PM10: 14.83 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

3 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.06 µg/m³
  • PM10: 16.11 µg/m³
  • O3: 0.055 ppm
  • NO2: 2.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

4 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.02 µg/m³
  • PM10: 16.97 µg/m³
  • O3: 0.055 ppm
  • NO2: 2.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.24 µg/m³
  • PM10: 17.02 µg/m³
  • O3: 0.054 ppm
  • NO2: 3.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.6 µg/m³
  • PM10: 16.03 µg/m³
  • O3: 0.048 ppm
  • NO2: 5 ppb
  • SO2: 0.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.78 µg/m³
  • PM10: 14.98 µg/m³
  • O3: 0.041 ppm
  • NO2: 6.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

8 PM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.04 µg/m³
  • PM10: 14.18 µg/m³
  • O3: 0.036 ppm
  • NO2: 6.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

9 PM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.53 µg/m³
  • PM10: 13.78 µg/m³
  • O3: 0.033 ppm
  • NO2: 7.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.38 µg/m³
  • PM10: 13.86 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

11 PM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.57 µg/m³
  • PM10: 14.32 µg/m³
  • O3: 0.031 ppm
  • NO2: 8.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.20 ppm

Health Recommendations:

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