Hourly Weather | Today Wednesday, March 18, 2026
Kennewick, Washington
5 AM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 57%
UV Index: 0
Wind: 9 mph
6 AM
Cloudy Night
48°
Feels Like 43°
0
Humidity: 62%
UV Index: 0
Wind: 9 mph
7 AM
Cloudy Night
52°
Feels Like 45°
0
Humidity: 59%
UV Index: 0
Wind: 10 mph
8 AM
Cloudy Weather
54°
Feels Like 50°
0
Humidity: 57%
UV Index: 1
Wind: 12 mph
9 AM
Cloudy Weather
57°
Feels Like 54°
0
Humidity: 53%
UV Index: 1
Wind: 13 mph
10 AM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 45%
UV Index: 2
Wind: 13 mph
11 AM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 41%
UV Index: 3
Wind: 14 mph
12 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 35%
UV Index: 3
Wind: 16 mph
1 PM
Cloudy Weather
73°
Feels Like 72°
0
Humidity: 30%
UV Index: 3
Wind: 16 mph
2 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 27%
UV Index: 3
Wind: 17 mph
3 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 26%
UV Index: 2
Wind: 16 mph
4 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 28%
UV Index: 1
Wind: 14 mph
5 PM
Cloudy Weather
73°
Feels Like 72°
0
Humidity: 29%
UV Index: 1
Wind: 12 mph
6 PM
Cloudy Weather
73°
Feels Like 70°
0
Humidity: 32%
UV Index: 1
Wind: 12 mph
7 PM
Cloudy Weather
70°
Feels Like 66°
0
Humidity: 37%
UV Index: 0
Wind: 10 mph
8 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 41%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 44%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 46%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
63°
Feels Like 59°
0
Humidity: 48%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.98 µg/m³
  • PM10: 1.26 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.24 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.25 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.27 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.28 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.29 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.94 µg/m³
  • PM10: 1.3 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.86 µg/m³
  • PM10: 1.2 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 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
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.83 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 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
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.81 µg/m³
  • PM10: 1.14 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 1.13 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.82 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.86 µg/m³
  • PM10: 1.21 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.9 µg/m³
  • PM10: 1.3 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.97 µg/m³
  • PM10: 1.4 µg/m³
  • O3: 0.042 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.

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

Pollutant Concentrations:

  • PM2.5: 1 µg/m³
  • PM10: 1.46 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.98 µg/m³
  • PM10: 1.44 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.2 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.41 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.92 µg/m³
  • PM10: 1.38 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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