Today | Weather | Wednesday, February 25, 2026

Weather in Olympia, Washington

08:22 PM
Now
Rainy Weather
39° F
Feels Like 34°
Precipitation 51 %
Wind 8 mph
Humidity 83 %
Today
Cloudy Weather
Day 52°
Night 37°
Precipitation 49 %
Wind 8 mph
UV Index (0 - 11+) 3
Overnight Frost 12 AM – 6 AM

Olympia Weather Forecast Updated

Air Quality in Olympia

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.3 µg/m³
PM10 2.84 µg/m³
O3 0.043 ppm
NO2 1.1 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 0.1 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)
PM2.51.3 µg/m³
PM102.84 µg/m³
O383.82 µg/m³
NO22.09 µg/m³
SO20.24 µg/m³
CO152.78 µg/m³
NH30.1 µg/m³
NO0 µg/m³