Hourly Weather | Today › Monday, October 12, 2026
Bellevue, Washington
8 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 63%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
52°
Feels Like 50°
0
Humidity: 70%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 76%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 78%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.5 µg/m³
  • PM10: 3.27 µg/m³
  • O3: 0.021 ppm
  • NO2: 4.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 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: 2.69 µg/m³
  • PM10: 3.59 µg/m³
  • O3: 0.018 ppm
  • NO2: 5.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.87 µg/m³
  • PM10: 3.91 µg/m³
  • O3: 0.016 ppm
  • NO2: 5.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.03 µg/m³
  • PM10: 4.18 µg/m³
  • O3: 0.014 ppm
  • NO2: 5.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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