Today | Weather | Wednesday, March 18, 2026

Weather in Kennewick, Washington

02:49 AM
Now
Cloudy Night
52° F
Feels Like 46°
Precipitation 0 %
Wind 8 mph
Humidity 65 %
Today
Cloudy Weather
Day 75°
Night 54°
Precipitation 0 %
Wind 14 mph
UV Index (0 - 11+) 3

Kennewick Weather Forecast Updated

5 minutes ago
Last updated on

Air Quality in Kennewick

NOW
33 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.07 µg/m³
PM10 1.36 µg/m³
O3 0.036 ppm
NO2 0.8 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 3.98 µg/m³
NO 0 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)
PM2.51.07 µg/m³
PM101.36 µg/m³
O370.15 µg/m³
NO21.58 µg/m³
SO20.03 µg/m³
CO128.71 µg/m³
NH33.98 µg/m³
NO0 µg/m³