Today | Weather | Tuesday, September 1, 2026

Weather in Kennewick, Washington

08:32 AM
Now
Cloudy Weather
66° F
Feels Like 68°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 51 %
Today
Cloudy Weather
Day 88°
Night 64°
Precipitation 3 %
Wind 7 mph
UV Index (0 - 11+) 5

Kennewick Weather Forecast Updated

22 minutes ago
Last updated on

Air Quality in Kennewick

NOW
25 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.66 µg/m³
PM10 5.97 µg/m³
O3 0.027 ppm
NO2 2 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 1.66 µg/m³
NO 0.29 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.54.66 µg/m³
PM105.97 µg/m³
O353.04 µg/m³
NO23.81 µg/m³
SO20.27 µg/m³
CO125.52 µg/m³
NH31.66 µg/m³
NO0.29 µg/m³