Hourly Weather | Today Tuesday, April 7, 2026
Richland, Washington
11 AM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 29%
UV Index: 4
Wind: 12 mph
12 PM
Cloudy Weather
70°
Feels Like 72°
0
Humidity: 25%
UV Index: 5
Wind: 12 mph
1 PM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 22%
UV Index: 5
Wind: 12 mph
2 PM
Cloudy Weather
72°
Feels Like 73°
0
Humidity: 20%
UV Index: 5
Wind: 10 mph
3 PM
Cloudy Weather
72°
Feels Like 73°
0
Humidity: 19%
UV Index: 4
Wind: 10 mph
4 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 17%
UV Index: 3
Wind: 9 mph
5 PM
Sunny Weather
73°
Feels Like 73°
0
Humidity: 17%
UV Index: 2
Wind: 8 mph
6 PM
Sunny Weather
70°
Feels Like 70°
0
Humidity: 19%
UV Index: 1
Wind: 8 mph
7 PM
Sunny Weather
66°
Feels Like 63°
0
Humidity: 22%
UV Index: 0
Wind: 8 mph
8 PM
Night
64°
Feels Like 63°
0
Humidity: 26%
UV Index: 0
Wind: 7 mph
9 PM
Night
59°
Feels Like 57°
0
Humidity: 31%
UV Index: 0
Wind: 7 mph
10 PM
Night
55°
Feels Like 54°
0
Humidity: 33%
UV Index: 0
Wind: 7 mph
11 PM
Night
54°
Feels Like 52°
0
Humidity: 36%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.18 µg/m³
  • PM10: 2.91 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.35 µg/m³
  • PM10: 1.84 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.18 µg/m³
  • PM10: 1.62 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.39 µg/m³
  • PM10: 1.88 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.54 µg/m³
  • PM10: 2.07 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

4 PM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.47 µg/m³
  • PM10: 2.01 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.33 µg/m³
  • PM10: 1.88 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
69 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.31 µg/m³
  • PM10: 1.92 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
72 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.42 µg/m³
  • PM10: 2.15 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
73 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.53 µg/m³
  • PM10: 2.38 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
66 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.59 µg/m³
  • PM10: 2.51 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
58 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.65 µg/m³
  • PM10: 2.64 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.73 µg/m³
  • PM10: 2.79 µg/m³
  • O3: 0.054 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.