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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today | Thursday, August 21, 2025
Seattle, Washington
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 79°
0
Humidity: 44%
Wind: 9 mph
UV Index: 45
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
77°
Feels Like 79°
0
Humidity: 41%
Wind: 9 mph
UV Index: 35
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 75°
0
Humidity: 42%
Wind: 9 mph
UV Index: 24
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 73°
0
Humidity: 44%
Wind: 9 mph
UV Index: 16
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
73°
Feels Like 72°
0
Humidity: 46%
Wind: 8 mph
UV Index: 7
8 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
72°
Feels Like 68°
0
Humidity: 51%
Wind: 7 mph
UV Index: 0
9 PM
NightNighttime, with dark skies and stars or a moon visible.
68°
Feels Like 64°
0
Humidity: 56%
Wind: 7 mph
UV Index: 0
10 PM
NightNighttime, with dark skies and stars or a moon visible.
64°
Feels Like 63°
0
Humidity: 60%
Wind: 6 mph
UV Index: 0
11 PM
NightNighttime, with dark skies and stars or a moon visible.
63°
Feels Like 63°
0
Humidity: 64%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.48 µg/m³
  • PM10: 12.99 µg/m³
  • O₃: 39.20 ppb
  • NO₂: 7.86 ppb
  • SO₂: 1.16 ppb
  • CO: 155.77 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 PM
50 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.93 µg/m³
  • PM10: 12.37 µg/m³
  • O₃: 43.07 ppb
  • NO₂: 6.71 ppb
  • SO₂: 1.31 ppb
  • CO: 152.68 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

5 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.56 µg/m³
  • PM10: 12.35 µg/m³
  • O₃: 46.36 ppb
  • NO₂: 6.05 ppb
  • SO₂: 1.41 ppb
  • CO: 152.11 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.30 µg/m³
  • PM10: 12.67 µg/m³
  • O₃: 42.89 ppb
  • NO₂: 8.37 ppb
  • SO₂: 1.53 ppb
  • CO: 169.85 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 11.96 µg/m³
  • PM10: 12.15 µg/m³
  • O₃: 41.55 ppb
  • NO₂: 9.88 ppb
  • SO₂: 1.87 ppb
  • CO: 187.57 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.48 µg/m³
  • PM10: 13.67 µg/m³
  • O₃: 36.21 ppb
  • NO₂: 13.24 ppb
  • SO₂: 1.94 ppb
  • CO: 211.23 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.44 µg/m³
  • PM10: 14.64 µg/m³
  • O₃: 32.99 ppb
  • NO₂: 14.25 ppb
  • SO₂: 1.85 ppb
  • CO: 216.97 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.24 µg/m³
  • PM10: 15.46 µg/m³
  • O₃: 29.76 ppb
  • NO₂: 15.26 ppb
  • SO₂: 1.77 ppb
  • CO: 222.71 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.70 µg/m³
  • PM10: 15.95 µg/m³
  • O₃: 26.54 ppb
  • NO₂: 16.27 ppb
  • SO₂: 1.68 ppb
  • CO: 228.44 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

Current Real-Time Air Quality Report