Today | Weather | Wednesday, September 9, 2026

Weather in Kennewick, Washington

06:46 PM
Now
Sunny Weather
81° F
Feels Like 79°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 0
Humidity 29 %
Today
Sunny Weather
Day 90°
Night 55°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 5

Kennewick Weather Forecast Updated

32 minutes ago
Last updated on

Air Quality in Kennewick

NOW
46 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.83 µg/m³
PM10 2.84 µg/m³
O3 0.050 ppm
NO2 1.7 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 1.54 µg/m³
NO 0.09 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)
PM2.51.83 µg/m³
PM102.84 µg/m³
O398.5 µg/m³
NO23.2 µg/m³
SO20.38 µg/m³
CO143.52 µg/m³
NH31.54 µg/m³
NO0.09 µg/m³