Hourly Weather | Today Thursday, December 4, 2025
Chico, California
3 AM
Cloudy Night
39°
Feels Like 39°
0
Humidity: 81%
Wind: 5 mph
UV Index: 0
4 AM
Cloudy Night
39°
Feels Like 37°
0
Humidity: 80%
Wind: 5 mph
UV Index: 0
5 AM
Cloudy Night
39°
Feels Like 37°
0
Humidity: 82%
Wind: 5 mph
UV Index: 0
6 AM
Cloudy Night
37°
Feels Like 37°
0
Humidity: 83%
Wind: 5 mph
UV Index: 0
7 AM
Night
37°
Feels Like 37°
0
Humidity: 89%
Wind: 5 mph
UV Index: 0
8 AM
Sunny Weather
39°
Feels Like 39°
0
Humidity: 93%
Wind: 5 mph
UV Index: 1
9 AM
Cloudy Weather
41°
Feels Like 45°
0
Humidity: 87%
Wind: 5 mph
UV Index: 1
10 AM
Cloudy Weather
45°
Feels Like 48°
0
Humidity: 81%
Wind: 5 mph
UV Index: 2
11 AM
Cloudy Weather
48°
Feels Like 52°
0
Humidity: 73%
Wind: 5 mph
UV Index: 2
12 PM
Sunny Weather
52°
Feels Like 55°
0
Humidity: 66%
Wind: 5 mph
UV Index: 2
1 PM
Sunny Weather
52°
Feels Like 55°
0
Humidity: 63%
Wind: 5 mph
UV Index: 2
2 PM
Cloudy Weather
54°
Feels Like 57°
0
Humidity: 61%
Wind: 5 mph
UV Index: 2
3 PM
Cloudy Weather
52°
Feels Like 55°
0
Humidity: 67%
Wind: 5 mph
UV Index: 1
4 PM
Cloudy Weather
52°
Feels Like 52°
0
Humidity: 72%
Wind: 4 mph
UV Index: 1
5 PM
Cloudy Night
48°
Feels Like 48°
0
Humidity: 81%
Wind: 4 mph
UV Index: 0
6 PM
Cloudy Night
46°
Feels Like 46°
0
Humidity: 88%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 43°
0
Humidity: 93%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 95%
Wind: 4 mph
UV Index: 0
9 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 97%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Night
41°
Feels Like 43°
0
Humidity: 99%
Wind: 2 mph
UV Index: 0
11 PM
Cloudy Night
41°
Feels Like 43°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.79 µg/m³
  • PM10: 6.65 µg/m³
  • O3: 0.022 ppm
  • NO2: 4.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.92 µg/m³
  • PM10: 6.78 µg/m³
  • O3: 0.021 ppm
  • NO2: 4.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.01 µg/m³
  • PM10: 6.89 µg/m³
  • O3: 0.020 ppm
  • NO2: 4.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.05 µg/m³
  • PM10: 6.99 µg/m³
  • O3: 0.019 ppm
  • NO2: 4.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 7.38 µg/m³
  • O3: 0.017 ppm
  • NO2: 5.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 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: 5.27 µg/m³
  • PM10: 7.69 µg/m³
  • O3: 0.014 ppm
  • NO2: 6.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.82 µg/m³
  • PM10: 7.46 µg/m³
  • O3: 0.013 ppm
  • NO2: 5.9 ppb
  • SO2: 0 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.44 µg/m³
  • PM10: 7.23 µg/m³
  • O3: 0.015 ppm
  • NO2: 4.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.33 µg/m³
  • PM10: 6.07 µg/m³
  • O3: 0.024 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.41 µg/m³
  • PM10: 6.2 µg/m³
  • O3: 0.025 ppm
  • NO2: 3 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.74 µg/m³
  • PM10: 6.57 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.73 µg/m³
  • PM10: 6.31 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.99 µg/m³
  • PM10: 6.44 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.33 µg/m³
  • PM10: 6.79 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.82 µg/m³
  • PM10: 7.38 µg/m³
  • O3: 0.026 ppm
  • NO2: 5.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

6 PM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.52 µg/m³
  • PM10: 8.21 µg/m³
  • O3: 0.021 ppm
  • NO2: 7 ppb
  • SO2: 0.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

7 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 9.02 µg/m³
  • O3: 0.018 ppm
  • NO2: 8.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.7 µg/m³
  • PM10: 9.72 µg/m³
  • O3: 0.016 ppm
  • NO2: 8.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.22 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: 7.39 µg/m³
  • PM10: 10.57 µg/m³
  • O3: 0.015 ppm
  • NO2: 9 ppb
  • SO2: 0.1 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.16 µg/m³
  • PM10: 11.44 µg/m³
  • O3: 0.015 ppm
  • NO2: 9.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.68 µg/m³
  • PM10: 11.97 µg/m³
  • O3: 0.015 ppm
  • NO2: 9.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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