Today | Weather | Monday, April 27, 2026

Weather in Richland, Washington

05:41 AM
Now
Cloudy Weather
43° F
Feels Like 43°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 0
Humidity 78 %
Today
Cloudy Weather
Day 73°
Night 46°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 7

Richland Weather Forecast Updated

51 minutes ago
Last updated on

Air Quality in Richland

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.17 µg/m³
PM10 2.78 µg/m³
O3 0.043 ppm
NO2 0.5 ppb
SO2 0.1 ppb
CO 0.12 ppm
NH3 2.47 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)
PM2.52.17 µg/m³
PM102.78 µg/m³
O384.67 µg/m³
NO21.03 µg/m³
SO20.25 µg/m³
CO135.33 µg/m³
NH32.47 µg/m³
NO0 µg/m³