Today | Weather | Monday, September 21, 2026

Weather in Auburn, Washington

11:53 AM
Now
Cloudy Weather
63° F
Feels Like 66°
Precipitation 34 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 74 %
Today
Rainy Weather
Day 68°
Night 55°
Precipitation 49 %
Wind 5 mph
UV Index (0 - 11+) 3

Auburn Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 21, 2025)
Cloudy Night

Day

70°

Night

48°

Wind

5 mph

Precipitation

6 %

Air Quality in Auburn

NOW
32 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.93 µg/m³
PM10 4.23 µg/m³
O3 0.035 ppm
NO2 2.2 ppb
SO2 0.6 ppb
CO 0.11 ppm
NH3 0.16 µg/m³
NO 0.48 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)
PM2.52.93 µg/m³
PM104.23 µg/m³
O367.96 µg/m³
NO24.18 µg/m³
SO21.62 µg/m³
CO127.07 µg/m³
NH30.16 µg/m³
NO0.48 µg/m³