Hourly Weather | Today › Wednesday, October 14, 2026
Richland, Washington
6 PM
Sunny Weather
66°
Feels Like 64°
0
Humidity: 42%
UV Index: 0
Wind: 4 mph
7 PM
Night
63°
Feels Like 63°
0
Humidity: 50%
UV Index: 0
Wind: 2 mph
8 PM
Night
59°
Feels Like 59°
0
Humidity: 61%
UV Index: 0
Wind: 4 mph
9 PM
Night
55°
Feels Like 55°
0
Humidity: 69%
UV Index: 0
Wind: 5 mph
10 PM
Night
52°
Feels Like 52°
0
Humidity: 78%
UV Index: 0
Wind: 5 mph
11 PM
Night
48°
Feels Like 48°
0
Humidity: 87%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.76 µg/m³
  • PM10: 2.34 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.9 µg/m³
  • PM10: 2.5 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.05 µg/m³
  • PM10: 2.7 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.16 µg/m³
  • PM10: 2.83 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.25 µg/m³
  • PM10: 2.98 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.34 µg/m³
  • PM10: 3.13 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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