Today | Weather | Wednesday, March 18, 2026

Weather in Richland, Washington

12:04 AM
Now
Cloudy Weather
63° F
Feels Like 61°
Precipitation 0 %
Wind 7 mph
Humidity 44 %
Today
Cloudy Weather
Day 75°
Night 57°
Precipitation 3 %
Wind 12 mph
UV Index (0 - 11+) 2

Richland Weather Forecast Updated

45 minutes ago
Last updated on

Air Quality in Richland

NOW
36 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.28 µg/m³
PM10 1.68 µg/m³
O3 0.039 ppm
NO2 1.2 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 3.44 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)
PM2.51.28 µg/m³
PM101.68 µg/m³
O376.56 µg/m³
NO22.18 µg/m³
SO20.03 µg/m³
CO130.23 µg/m³
NH33.44 µg/m³
NO0 µg/m³