Hourly Weather | Today Monday, November 3, 2025
Active Weather Warnings
  • High Wind Warning

Seattle, Washington
4 PM
Rainy Weather
48°
Feels Like 45°
61
Humidity: 80%
Wind: 6 mph
UV Index: 0
5 PM
Cloudy Weather
48°
Feels Like 46°
49
Humidity: 82%
Wind: 6 mph
UV Index: 0
6 PM
Cloudy Weather
48°
Feels Like 48°
49
Humidity: 83%
Wind: 5 mph
UV Index: 0
7 PM
Rainy Weather
46°
Feels Like 34°
51
Humidity: 86%
Wind: 23 mph
UV Index: 0
8 PM
Cloudy Weather
46°
Feels Like 36°
47
Humidity: 87%
Wind: 23 mph
UV Index: 0
9 PM
Cloudy Weather
46°
Feels Like 34°
43
Humidity: 88%
Wind: 23 mph
UV Index: 0
10 PM
Cloudy Weather
46°
Feels Like 34°
43
Humidity: 88%
Wind: 24 mph
UV Index: 0
11 PM
Cloudy Weather
46°
Feels Like 34°
47
Humidity: 88%
Wind: 24 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 1.88 µg/m³
  • O3: 0.026 ppm
  • NO2: 5.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.45 µg/m³
  • PM10: 1.88 µg/m³
  • O3: 0.024 ppm
  • NO2: 5.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.47 µg/m³
  • PM10: 1.89 µg/m³
  • O3: 0.022 ppm
  • NO2: 6.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.48 µg/m³
  • PM10: 1.91 µg/m³
  • O3: 0.021 ppm
  • NO2: 6.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 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: 1.46 µg/m³
  • PM10: 1.89 µg/m³
  • O3: 0.021 ppm
  • NO2: 5.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.47 µg/m³
  • PM10: 1.89 µg/m³
  • O3: 0.021 ppm
  • NO2: 5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 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: 1.61 µg/m³
  • PM10: 2 µg/m³
  • O3: 0.022 ppm
  • NO2: 4.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 2.15 µg/m³
  • O3: 0.021 ppm
  • NO2: 5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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