Today | Weather | Wednesday, October 14, 2026

Weather in Richland, Washington

04:57 PM
Now
Sunny Weather
70° F
Feels Like 70°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 1
Humidity 37 %
Today
Cloudy Weather
Day 73°
Night 37°
Precipitation 40 %
Wind 2 mph
UV Index (0 - 11+) 3

Richland Weather Forecast Updated

40 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 14, 2025)
Cloudy Weather

Day

63°

Night

34°

Wind

6 mph

UV Index

30

Precipitation

1 %

Air Quality in Richland

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.7 µg/m³
PM10 2.3 µg/m³
O3 0.041 ppm
NO2 0.5 ppb
SO2 0.2 ppb
CO 0.09 ppm
NH3 0.65 µg/m³
NO 0.11 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)
PM2.5 – 1.7 µg/m³
PM10 – 2.3 µg/m³
O3 – 81.34 µg/m³
NO2 – 0.88 µg/m³
SO2 – 0.4 µg/m³
CO – 105.52 µg/m³
NH3 – 0.65 µg/m³
NO – 0.11 µg/m³