Hourly Weather | Today Wednesday, August 12, 2026
Bellingham, Washington
5 AM
Cloudy Night
57°
Feels Like 57°
6
Humidity: 91%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Weather
55°
Feels Like 55°
6
Humidity: 94%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
57°
Feels Like 57°
6
Humidity: 91%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
61°
Feels Like 61°
7
Humidity: 86%
UV Index: 1
Wind: 5 mph
9 AM
Cloudy Weather
63°
Feels Like 63°
7
Humidity: 82%
UV Index: 1
Wind: 6 mph
10 AM
Cloudy Weather
64°
Feels Like 64°
7
Humidity: 78%
UV Index: 1
Wind: 6 mph
11 AM
Cloudy Weather
66°
Feels Like 66°
7
Humidity: 74%
UV Index: 2
Wind: 7 mph
12 PM
Cloudy Weather
68°
Feels Like 70°
7
Humidity: 70%
UV Index: 3
Wind: 7 mph
1 PM
Cloudy Weather
70°
Feels Like 72°
7
Humidity: 67%
UV Index: 3
Wind: 7 mph
2 PM
Cloudy Weather
70°
Feels Like 75°
6
Humidity: 63%
UV Index: 6
Wind: 7 mph
3 PM
Cloudy Weather
72°
Feels Like 75°
6
Humidity: 60%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
72°
Feels Like 75°
6
Humidity: 59%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
73°
Feels Like 75°
6
Humidity: 57%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
72°
Feels Like 72°
6
Humidity: 63%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
70°
Feels Like 70°
4
Humidity: 67%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
66°
Feels Like 64°
2
Humidity: 73%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
64°
Feels Like 64°
2
Humidity: 79%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
63°
Feels Like 63°
2
Humidity: 82%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
63°
Feels Like 61°
2
Humidity: 85%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.78 µg/m³
  • PM10: 2.47 µg/m³
  • O3: 0.005 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.83 µg/m³
  • PM10: 2.56 µg/m³
  • O3: 0.005 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.91 µg/m³
  • PM10: 2.68 µg/m³
  • O3: 0.005 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.97 µg/m³
  • PM10: 2.79 µg/m³
  • O3: 0.005 ppm
  • NO2: 1.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.97 µg/m³
  • PM10: 2.8 µg/m³
  • O3: 0.013 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.09 µg/m³
  • PM10: 2.92 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.29 µg/m³
  • PM10: 3.14 µg/m³
  • O3: 0.017 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.71 µg/m³
  • PM10: 3.42 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.72 µg/m³
  • PM10: 3.35 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.7 µg/m³
  • PM10: 3.31 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.72 µg/m³
  • PM10: 3.33 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.85 µg/m³
  • PM10: 3.49 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.01 µg/m³
  • PM10: 3.7 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.19 µg/m³
  • PM10: 3.95 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.32 µg/m³
  • PM10: 4.22 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.43 µg/m³
  • PM10: 4.55 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.54 µg/m³
  • PM10: 4.85 µg/m³
  • O3: 0.017 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.66 µg/m³
  • PM10: 5.12 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.79 µg/m³
  • PM10: 5.35 µg/m³
  • O3: 0.012 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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