Today | Weather | Wednesday, November 4, 2026

Weather in Richland, Washington

06:29 AM
Now
Cloudy Night
36° F
Feels Like 36°
Precipitation 0 %
Wind 4 mph
Humidity 95 %
Today
Cloudy Weather
Day 57°
Night 43°
Precipitation 7 %
Wind 4 mph
UV Index (0 - 11+) 2

Richland Weather Forecast Updated

15 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 4, 2025)
Rainy Weather

Day

52°

Night

46°

Wind

4 mph

UV Index

1

Precipitation

55 %

Air Quality in Richland

NOW
23 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.51 µg/m³
PM10 6.16 µg/m³
O3 0.019 ppm
NO2 2.7 ppb
SO2 0 ppb
CO 0.18 ppm
NH3 0.86 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)
PM2.5 – 5.51 µg/m³
PM10 – 6.16 µg/m³
O3 – 37.9 µg/m³
NO2 – 5.14 µg/m³
SO2 – 0.04 µg/m³
CO – 201.85 µg/m³
NH3 – 0.86 µg/m³
NO – 0 µg/m³