Today | Weather | Wednesday, March 18, 2026

Weather in Pasco, Washington

12:00 AM
Now
Cloudy Night
57° F
Feels Like 55°
Precipitation 0 %
Wind 7 mph
Humidity 52 %
Today
Cloudy Weather
Day 75°
Night 52°
Precipitation 0 %
Wind 13 mph
UV Index (0 - 11+) 3

Pasco Weather Forecast Updated

25 minutes ago
Last updated on

Air Quality in Pasco

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.23 µg/m³
PM10 1.6 µg/m³
O3 0.037 ppm
NO2 1.3 ppb
SO2 0 ppb
CO 0.12 ppm
NH3 3.86 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)
PM2.51.23 µg/m³
PM101.6 µg/m³
O372.04 µg/m³
NO22.36 µg/m³
SO20.03 µg/m³
CO134.2 µg/m³
NH33.86 µg/m³
NO0 µg/m³