Hourly Weather | Today Wednesday, August 12, 2026
Active Weather Warnings
Kennewick, Washington
5 AM
Night
66°
Feels Like 63°
0
Humidity: 66%
UV Index: 0
Wind: 8 mph
6 AM
Sunny Weather
66°
Feels Like 64°
0
Humidity: 62%
UV Index: 0
Wind: 8 mph
7 AM
Sunny Weather
70°
Feels Like 68°
0
Humidity: 58%
UV Index: 1
Wind: 8 mph
8 AM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 56%
UV Index: 2
Wind: 8 mph
9 AM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 51%
UV Index: 3
Wind: 8 mph
10 AM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 44%
UV Index: 4
Wind: 8 mph
11 AM
Cloudy Weather
82°
Feels Like 84°
0
Humidity: 39%
UV Index: 5
Wind: 8 mph
12 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 35%
UV Index: 7
Wind: 8 mph
1 PM
Cloudy Weather
88°
Feels Like 91°
0
Humidity: 32%
UV Index: 7
Wind: 7 mph
2 PM
Cloudy Weather
90°
Feels Like 93°
0
Humidity: 30%
UV Index: 7
Wind: 7 mph
3 PM
Cloudy Weather
90°
Feels Like 93°
0
Humidity: 28%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
91°
Feels Like 93°
0
Humidity: 27%
UV Index: 4
Wind: 6 mph
5 PM
Cloudy Weather
91°
Feels Like 93°
0
Humidity: 26%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
90°
Feels Like 90°
0
Humidity: 28%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
88°
Feels Like 88°
0
Humidity: 30%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
84°
Feels Like 82°
0
Humidity: 35%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
81°
Feels Like 79°
0
Humidity: 42%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 49%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
75°
Feels Like 72°
0
Humidity: 56%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
175 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 102.33 µg/m³
  • PM10: 103 µg/m³
  • O3: 0.021 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.27 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

6 AM
174 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 101.8 µg/m³
  • PM10: 102.5 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.26 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

7 AM
173 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 99.55 µg/m³
  • PM10: 100.29 µg/m³
  • O3: 0.019 ppm
  • NO2: 2.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.26 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

8 AM
171 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 94.95 µg/m³
  • PM10: 95.73 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.26 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

9 AM
164 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 81.08 µg/m³
  • PM10: 81.92 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.23 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

10 AM
159 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 72.48 µg/m³
  • PM10: 73.32 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.22 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

11 AM
153 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 61.25 µg/m³
  • PM10: 62.11 µg/m³
  • O3: 0.036 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

12 PM
117 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 42.29 µg/m³
  • PM10: 42.93 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

1 PM
90 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 30.87 µg/m³
  • PM10: 31.37 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

2 PM
83 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.49 µg/m³
  • PM10: 27.93 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.4 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.

3 PM
77 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 24.79 µg/m³
  • PM10: 25.16 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.5 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.

4 PM
76 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 24.1 µg/m³
  • PM10: 24.39 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 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.

5 PM
97 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 33.8 µg/m³
  • PM10: 34.05 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

6 PM
154 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 62.74 µg/m³
  • PM10: 62.97 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

7 PM
176 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 105.55 µg/m³
  • PM10: 105.81 µg/m³
  • O3: 0.054 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.26 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

8 PM
193 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 137.65 µg/m³
  • PM10: 137.95 µg/m³
  • O3: 0.047 ppm
  • NO2: 4.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.31 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

9 PM
199 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 147.78 µg/m³
  • PM10: 148.1 µg/m³
  • O3: 0.040 ppm
  • NO2: 4.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.33 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

10 PM
198 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 146.51 µg/m³
  • PM10: 146.86 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.33 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

11 PM
195 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 141.03 µg/m³
  • PM10: 141.41 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.32 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

Weather Alerts and Warnings for Kennewick

Air Quality Alert

Air Quality Alert issued August 5 at 2:33PM PDT by NWS Pendleton OR
Aug 5, 2:33 PM Aug 12, 5:00 AM
The Washington State Department of Ecology, Benton Clean Air Agency,
and the Yakima Regional Clean Air Agency have issued an Air Quality
Alert until further notice.

For the Smoke Air Quality Alert, wildfires burning in the region
combined with forecasted conditions will cause air quality to reach
unhealthy levels.

Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.

Information from the Washington Department of Ecology web site is
available at http://www.ecy.wa.gov/air.html or call 360-407-6000.
Information from the Yakima Regional Clean Air Agency web site is
available at http://www.yakimacleanair.org or call 509-834-2050.
Information from the Benton County Clean Air Agency web site is
available at http://www.bentoncleanair.org or call 509-783-1304.
Updated: Aug 12, 4:07 AM Source: NWS Alert