Hourly Weather | Today Wednesday, December 24, 2025
Richland, Washington
12 PM
Cloudy Weather
48°
Feels Like 50°
30
Humidity: 75%
Wind: 4 mph
UV Index: 1
1 PM
Cloudy Weather
50°
Feels Like 50°
20
Humidity: 74%
Wind: 4 mph
UV Index: 1
2 PM
Cloudy Weather
50°
Feels Like 50°
20
Humidity: 72%
Wind: 6 mph
UV Index: 1
3 PM
Cloudy Weather
52°
Feels Like 46°
20
Humidity: 69%
Wind: 9 mph
UV Index: 0
4 PM
Cloudy Weather
50°
Feels Like 45°
20
Humidity: 70%
Wind: 9 mph
UV Index: 0
5 PM
Cloudy Night
48°
Feels Like 45°
20
Humidity: 73%
Wind: 8 mph
UV Index: 0
6 PM
Cloudy Night
46°
Feels Like 43°
13
Humidity: 77%
Wind: 7 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 43°
0
Humidity: 81%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
43°
Feels Like 41°
0
Humidity: 85%
Wind: 4 mph
UV Index: 0
9 PM
Cloudy Night
41°
Feels Like 41°
0
Humidity: 89%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Night
39°
Feels Like 39°
0
Humidity: 92%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
37°
Feels Like 37°
0
Humidity: 95%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.77 µg/m³
  • PM10: 1.06 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.7 µg/m³
  • PM10: 0.93 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.68 µg/m³
  • PM10: 0.9 µg/m³
  • O3: 0.032 ppm
  • NO2: 1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 0.92 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.3 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
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 0.91 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 0.81 µg/m³
  • O3: 0.026 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.61 µg/m³
  • PM10: 0.75 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.7 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 0.75 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.2 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 0.77 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.4 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.018 ppm
  • NO2: 3.6 ppb
  • SO2: 0 ppb
  • CO: 0.14 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: 0.69 µg/m³
  • PM10: 0.89 µg/m³
  • O3: 0.016 ppm
  • NO2: 3.7 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.73 µg/m³
  • PM10: 0.96 µg/m³
  • O3: 0.015 ppm
  • NO2: 3.7 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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