Today | Weather | Wednesday, September 9, 2026

Weather in Richland, Washington

06:03 PM
Now
Cloudy Weather
82° F
Feels Like 82°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 1
Humidity 26 %
Today
Sunny Weather
Day 90°
Night 57°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 5

Richland Weather Forecast Updated

11 minutes ago
Last updated on

Air Quality in Richland

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.68 µg/m³
PM10 2.76 µg/m³
O3 0.053 ppm
NO2 0.8 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0.86 µg/m³
NO 0.14 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)
PM2.51.68 µg/m³
PM102.76 µg/m³
O3103.39 µg/m³
NO21.48 µg/m³
SO20.47 µg/m³
CO131.24 µg/m³
NH30.86 µg/m³
NO0.14 µg/m³