Hourly Weather | Today Tuesday, September 1, 2026
Shoreline, Washington
9 AM
Cloudy Weather
57°
Feels Like 57°
0
Humidity: 90%
UV Index: 1
Wind: 8 mph
10 AM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 80%
UV Index: 1
Wind: 9 mph
11 AM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 73%
UV Index: 2
Wind: 11 mph
12 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 68%
UV Index: 2
Wind: 11 mph
1 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 63%
UV Index: 3
Wind: 11 mph
2 PM
Cloudy Weather
70°
Feels Like 72°
2
Humidity: 59%
UV Index: 5
Wind: 11 mph
3 PM
Cloudy Weather
70°
Feels Like 72°
2
Humidity: 57%
UV Index: 4
Wind: 11 mph
4 PM
Cloudy Weather
72°
Feels Like 72°
2
Humidity: 54%
UV Index: 3
Wind: 12 mph
5 PM
Cloudy Weather
70°
Feels Like 68°
2
Humidity: 56%
UV Index: 2
Wind: 12 mph
6 PM
Cloudy Weather
68°
Feels Like 66°
2
Humidity: 59%
UV Index: 1
Wind: 11 mph
7 PM
Cloudy Weather
66°
Feels Like 63°
3
Humidity: 63%
UV Index: 1
Wind: 11 mph
8 PM
Cloudy Weather
64°
Feels Like 61°
4
Humidity: 67%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Night
61°
Feels Like 57°
4
Humidity: 74%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
59°
Feels Like 55°
4
Humidity: 79%
UV Index: 0
Wind: 11 mph
11 PM
Cloudy Weather
59°
Feels Like 55°
6
Humidity: 80%
UV Index: 0
Wind: 11 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.64 µg/m³
  • PM10: 4.85 µg/m³
  • O3: 0.019 ppm
  • NO2: 2.1 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 AM
19 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.41 µg/m³
  • PM10: 4.51 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.2 µg/m³
  • PM10: 4.13 µg/m³
  • O3: 0.021 ppm
  • NO2: 2.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 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: 1.8 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 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: 1.45 µg/m³
  • PM10: 2.4 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.21 µg/m³
  • PM10: 1.93 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 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: 1.07 µg/m³
  • PM10: 1.63 µg/m³
  • O3: 0.027 ppm
  • NO2: 1 ppb
  • SO2: 0.3 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: 1.01 µg/m³
  • PM10: 1.51 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 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: 1 µg/m³
  • PM10: 1.49 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.05 µg/m³
  • PM10: 1.6 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.17 µg/m³
  • PM10: 1.83 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.23 µg/m³
  • PM10: 1.97 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 2.1 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.37 µg/m³
  • PM10: 2.31 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 2.46 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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