Hourly Weather | Today Wednesday, August 12, 2026
Marysville, Washington
6 AM
Cloudy Weather
57°
Feels Like 57°
1
Humidity: 91%
UV Index: 0
Wind: 4 mph
7 AM
Cloudy Weather
57°
Feels Like 57°
1
Humidity: 95%
UV Index: 0
Wind: 4 mph
8 AM
Cloudy Weather
57°
Feels Like 61°
2
Humidity: 92%
UV Index: 1
Wind: 4 mph
9 AM
Cloudy Weather
61°
Feels Like 63°
2
Humidity: 86%
UV Index: 1
Wind: 4 mph
10 AM
Cloudy Weather
64°
Feels Like 66°
2
Humidity: 81%
UV Index: 1
Wind: 5 mph
11 AM
Cloudy Weather
66°
Feels Like 66°
2
Humidity: 75%
UV Index: 2
Wind: 5 mph
12 PM
Cloudy Weather
70°
Feels Like 72°
2
Humidity: 69%
UV Index: 2
Wind: 6 mph
1 PM
Cloudy Weather
72°
Feels Like 73°
4
Humidity: 64%
UV Index: 3
Wind: 6 mph
2 PM
Cloudy Weather
73°
Feels Like 79°
7
Humidity: 60%
UV Index: 6
Wind: 7 mph
3 PM
Cloudy Weather
75°
Feels Like 79°
7
Humidity: 57%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
75°
Feels Like 79°
7
Humidity: 55%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
77°
Feels Like 79°
7
Humidity: 52%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
73°
Feels Like 75°
7
Humidity: 57%
UV Index: 2
Wind: 6 mph
7 PM
Cloudy Weather
73°
Feels Like 72°
7
Humidity: 61%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
70°
Feels Like 68°
6
Humidity: 67%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
66°
Feels Like 64°
6
Humidity: 74%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
64°
Feels Like 64°
6
Humidity: 79%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
63°
Feels Like 63°
6
Humidity: 85%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 4.04 µg/m³
  • O3: 0.012 ppm
  • NO2: 2.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.69 µg/m³
  • PM10: 3.99 µg/m³
  • O3: 0.011 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.74 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.011 ppm
  • NO2: 3.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.77 µg/m³
  • PM10: 4.02 µg/m³
  • O3: 0.013 ppm
  • NO2: 3.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.77 µg/m³
  • PM10: 3.97 µg/m³
  • O3: 0.014 ppm
  • NO2: 3 ppb
  • SO2: 0.7 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.78 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.015 ppm
  • NO2: 2.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.81 µg/m³
  • PM10: 3.72 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.84 µg/m³
  • PM10: 3.62 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.64 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.91 µg/m³
  • PM10: 3.61 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.81 µg/m³
  • PM10: 3.5 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.75 µg/m³
  • PM10: 3.51 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.8 µg/m³
  • PM10: 3.76 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.92 µg/m³
  • PM10: 4.31 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 5.06 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 5.81 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.66 µg/m³
  • PM10: 6.5 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 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: 3.85 µg/m³
  • PM10: 6.97 µg/m³
  • O3: 0.017 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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