Hourly Weather | Today › Wednesday, November 4, 2026
Richland, Washington
8 AM
Foggy Weather
39°
Feels Like 41°
0
Humidity: 93%
UV Index: 0
Wind: 4 mph
9 AM
Foggy Weather
43°
Feels Like 45°
0
Humidity: 90%
UV Index: 1
Wind: 4 mph
10 AM
Foggy Weather
46°
Feels Like 48°
0
Humidity: 85%
UV Index: 1
Wind: 4 mph
11 AM
Foggy Weather
50°
Feels Like 52°
0
Humidity: 75%
UV Index: 1
Wind: 4 mph
12 PM
Foggy Weather
52°
Feels Like 57°
0
Humidity: 68%
UV Index: 2
Wind: 5 mph
1 PM
Cloudy Weather
55°
Feels Like 59°
0
Humidity: 63%
UV Index: 2
Wind: 5 mph
2 PM
Cloudy Weather
55°
Feels Like 61°
0
Humidity: 58%
UV Index: 2
Wind: 5 mph
3 PM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 56%
UV Index: 1
Wind: 5 mph
4 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 62%
UV Index: 1
Wind: 5 mph
5 PM
Cloudy Night
52°
Feels Like 50°
0
Humidity: 72%
UV Index: 0
Wind: 5 mph
6 PM
Cloudy Night
46°
Feels Like 46°
1
Humidity: 84%
UV Index: 0
Wind: 5 mph
7 PM
Cloudy Weather
45°
Feels Like 45°
4
Humidity: 90%
UV Index: 0
Wind: 4 mph
8 PM
Cloudy Weather
45°
Feels Like 45°
4
Humidity: 90%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Weather
45°
Feels Like 45°
4
Humidity: 89%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Weather
45°
Feels Like 45°
4
Humidity: 91%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Weather
46°
Feels Like 45°
4
Humidity: 88%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.37 µg/m³
  • PM10: 6.14 µg/m³
  • O3: 0.019 ppm
  • NO2: 3.3 ppb
  • SO2: 0 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

9 AM
21 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.01 µg/m³
  • PM10: 5.92 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.1 ppb
  • SO2: 0 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

10 AM
20 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.74 µg/m³
  • PM10: 5.83 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.8 ppb
  • SO2: 0 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.65 µg/m³
  • PM10: 6.06 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.45 µg/m³
  • PM10: 5.96 µg/m³
  • O3: 0.032 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.43 µg/m³
  • PM10: 6.01 µg/m³
  • O3: 0.034 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.74 µg/m³
  • PM10: 6.42 µg/m³
  • O3: 0.036 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

3 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.79 µg/m³
  • PM10: 6.55 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.82 µg/m³
  • PM10: 6.63 µg/m³
  • O3: 0.035 ppm
  • NO2: 3 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.99 µg/m³
  • PM10: 6.82 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.16 µg/m³
  • PM10: 6.99 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.15 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 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: 3.9 µg/m³
  • PM10: 5.56 µg/m³
  • O3: 0.027 ppm
  • NO2: 4 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.56 µg/m³
  • PM10: 4.04 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.5 ppb
  • SO2: 0 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.21 µg/m³
  • PM10: 3.53 µg/m³
  • O3: 0.026 ppm
  • NO2: 3 ppb
  • SO2: 0 ppb
  • CO: 0.18 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: 1.99 µg/m³
  • PM10: 3.11 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.5 ppb
  • SO2: 0 ppb
  • CO: 0.17 ppm

Health Recommendations:

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